Grammar Rule in 30 Seconds
Use 'provided that' to set a firm, specific condition for an agreement or a future event to happen.
- Use 'provided that' for strict conditions: 'You can go, provided that you finish your homework.'
- Use the present simple for future conditions: 'I'll help, provided that he asks nicely.'
- The word 'that' is optional in spoken English: 'I'll go provided you pay for gas.'
Overview
if は非常に便利ですが、ビジネスの契約、公式なルール、あるいは学術的な議論においては、条件が「単なる仮定」ではなく「不可欠な要件」であることを強調する必要があります。そこで登場するのが、今回解説する provided that と providing that です。if 以外の条件表現を使いこなすことは、単に語彙を増やすこと以上の意味があります。それは、相手に対して「私はプロフェッショナルな文脈で、明確な条件提示ができる」という信頼感を与えることにつながるからです。本稿では、この provided that と providing that の使い方を、日本語の感覚と比較しながら、細かなニュアンスの違いまで徹底的に解説していきます。論理的で精度の高い英語を目指して、一緒にブラッシュアップしていきましょう。provided that と providing that は「従属接続詞（Subordinating Conjunction）」として機能します。つまり、文の中に「主節（メインとなるメッセージ）」と「条件節（前提となる条件）」を作り出し、その二つを強固に結びつける役割を果たします。provided that の語源は「provide（規定する、提供する）」にあります。法律用語や契約書で「It is provided that...（〜と規定されている）」という形で使われてきた歴史があるため、現代英語でも「合意事項としての条件」という響きが強く残っています。日本語で言うところの「〜という規定の下で」や「〜を条件として」という訳がしっくりくるのはこのためです。if を使った文が「AならBだね」という緩やかな関係を示すこともあるのに対し、provided that は「Aという条件が満たされることが、Bが起こるための絶対的な前提である」という強い依存関係を示します。この「これしかない」という限定的なニュアンスが、ビジネスシーンでの交渉や、厳格なルール説明において非常に重宝されます。provided that が導く節の中では、未来の内容であっても「現在形」を使います。これは if を使った条件節（First Conditional）と同じルールです。条件そのものを「確定した前提」として扱うため、will を使って未来を表現することは避けます。The contract will be signed, provided that he accepts the terms.(○)The contract will be signed, provided that he will accept the terms.(×)
that の省略that を伴うのが一般的ですが、少しトーンを和らげたい場合や、口頭での説明では that を省略して provided や providing だけで使うこともよくあります。ただし、B2レベルの皆さんは、まずは that を含めた形で覚え、公式な文書では省略しないスタイルを身につけるのが得策です。will や can などの助動詞がよく使われます。provided that ＋ 条件節（最も一般的）- 構造:
[主節] + provided (that) + [条件節（現在形）] - 例文:
You can use the conference room, provided that you book it in advance.
Provided that ＋ 条件節 ＋ , ＋ 主節（強調）- 構造:
Provided (that) + [条件節（現在形）], + [主節] - 例文:
Provided that the weather remains clear, the outdoor ceremony will proceed as planned.
will) | provided that | 現在形 | The deal will go through, provided that both parties agree. |can / may) | providing that | 現在形 | You may borrow the car, providing that you refill the tank. |provided that | 現在形 | The warranty is valid, provided that the seal is not broken. |providing | 現在形 | Submit the report, providing that you have checked all the data. |if ではなく provided that を使うべきか、具体的なシチュエーションを見ていきましょう。We are willing to lower the price, provided that you increase the order volume to 5,000 units.
- 日本語の「〜を前提として」というビジネス特有の言い回しにぴったりです。
Employees are eligible for a bonus, providing that they meet all their annual KPIs.
- ここでは
ifを使うと少しカジュアルすぎるため、providing thatを使うことで「厳格な基準がある」ことを示せます。
The algorithm produces accurate results, provided that the input data is properly formatted.
- 科学的な「再現性」や「前提」を語る際に非常に好まれる表現です。
You can take a day off tomorrow, provided that you finish the client presentation tonight.
- 単なる
ifよりも「約束を守ることが絶対条件だ」というニュアンスが伝わります。
provided that は非常にフォーマルな響きがあるため、友だちとのランチや遊びの約束で使うと、まるで「契約書」を突きつけているような、冷たくて堅苦しい印象を与えてしまいます。- 不自然:
I'll go to the movies with you, provided that you pay for the popcorn.
- 自然:
I'll go to the movies with you if you buy the popcorn! - 日本語でも、友だちに「君が奢ることを前提として、映画への同行を許可する」とは言いませんよね。それと同じ感覚です。
will を入れてしまう (Using Future Tense)will を入れなきゃ」と考えてしまう学習者が多いです。- 間違い:
The event will be a success, provided that the guest speaker will arrive on time. - 正解:
The event will be a success, provided that the guest speaker arrives on time. - 条件節は「その条件が満たされた世界」をパッケージとして提示するものなので、
willは不要です。
As long as との混同 (Confusion with As Long As)Provided that: 「一度限りの条件・前提」に焦点がある。契約的。As long as: 「その状態が続いている期間」に焦点がある。継続的。
Provided that | 規定・前提: 条件が満たされるかどうかが鍵 | You can stay, provided that you pay the deposit. (敷金を払えば滞在を許可する) |As long as | 期間・継続: その状態が続く間はずっと | You can stay as long as you keep the room clean. (部屋を綺麗に保っている限り、ずっといていいよ) |if | 低〜中 | 最も汎用的。仮定、推測、提案など。 | もし〜なら |provided that | 高 | 非常にフォーマル。強い条件、契約上の規定。 | 〜という条件で |providing that | 中〜高 | provided that よりわずかに柔らかいが、依然としてフォーマル。 | 〜という前提で |as long as | 中 | 期間や継続性に重きを置く条件。 | 〜である限りは |unless | 中 | 「〜でない限り」。否定の条件。 | 〜でない限り |on condition that | 極めて高 | provided that よりもさらに「法的・強制的」な響き。 | 〜という条件を付して |provided that と providing that に意味の違いはありますか？provided that の方が好まれる傾向にあります。providing that の方が、現代的でわずかに口語に近い（それでも十分フォーマルですが）響きがあります。that を省略しても意味は通じますか？provided や providing 単体で使われることも多いです。しかし、書き言葉、特に公式な文書や論文では、that を残した方が構造が明確になり、よりプロフェッショナルな印象を与えます。on the condition that とどう使い分ければいいですか？on the condition that は、より「特定の具体的な条件」を指し示す名詞的な響きが強く、非常に重みがあります。provided that は接続詞としてスムーズに文を繋ぐため、文脈の流れを止めずに条件を提示するのに適しています。日常のビジネスシーンでは provided that の方が汎用性が高く、使い勝手が良いでしょう。provided that と providing that をマスターすることは、あなたの英語に「大人の落ち着き」と「論理的な厳密さ」をもたらします。日本の「察する文化」では曖昧にされがちな条件提示も、英語ではこのように明確な言葉で定義することが求められます。次に仕事で「〜という条件であれば可能です」と言う機会があれば、ぜひ if ではなく provided that を使ってみてください。その一言で、相手に与えるプロフェッショナルな印象が劇的に変わるはずです。頑張りましょう（Keep up the great work）！Sentence Structure with Provided That
| Main Clause (Result) | Conjunction | Condition Clause (Requirement) |
|---|---|---|
|
I will go
|
provided (that)
|
you pay.
|
|
She will help
|
providing (that)
|
she has time.
|
|
The car works
|
provided
|
it has fuel.
|
|
We can stay
|
providing
|
we are quiet.
|
|
They'll sign
|
provided that
|
the price is right.
|
|
You can enter
|
providing that
|
you are 18.
|
Common Variations
| Full Form | Spoken Form | Meaning |
|---|---|---|
|
Provided that
|
Provided
|
Formal condition
|
|
Providing that
|
Providing
|
Neutral condition
|
Meanings
A conjunction used to introduce a condition that must be met for something else to happen. It is more emphatic and formal than 'if'.
Contractual/Formal Agreement
Setting a non-negotiable requirement in a professional or legal context.
“The lease is renewable provided that the tenant gives three months' notice.”
“You may use the software provided that you do not redistribute the code.”
Everyday Promises/Deals
Making a personal agreement or setting a boundary with friends or family.
“I'll lend you the car provided that you fill the tank.”
“We can eat at that restaurant providing that they have vegetarian options.”
Hypothetical Assurance
Expressing confidence that an outcome will occur if one specific factor remains true.
“We should arrive by noon, provided that the traffic isn't too heavy.”
“The economy will recover providing that interest rates remain stable.”
Reference Table
| フレーズ | 意味 | フォーマル度 | よく使われる場面 |
|---|---|---|---|
|
Provided That
|
〜という条件で、〜の場合に限り
|
フォーマル
|
契約書、厳格な合意、公式声明
|
|
Providing That
|
〜という条件で、〜の場合に限り
|
フォーマル
|
公式声明、取り決め、ビジネス文脈
|
|
If
|
もし〜ならば、〜の場合には
|
中立／インフォーマル
|
一般的な条件、日常会話、可能性
|
|
As Long As
|
〜である限り、〜という条件で
|
中立／インフォーマル
|
期間、比較的緩い条件、カジュアルな約束
|
フォーマル度スペクトル
I shall attend the event provided that my expenses are covered. (Social outing)
I'll go to the party provided that you pay for the taxi. (Social outing)
I'll go provided you pay. (Social outing)
I'm in, long as you're paying. (Social outing)
Provided/Providing That: 核となる概念
機能
- Conjunction 節をつなぐ
- Stipulation 要件を述べる
文法
- Present Simple 条件節で使う
- No 'Will' その後に未来形を使わない
意味
- Only if 排他的な条件
- On condition that 公式な要件
文脈
- Formal ビジネス、法律、学術
- Serious 厳格な前提条件
Provided That と類似の条件表現の比較
Provided That / Providing That を使うべきか？
その条件は不可欠で交渉の余地がありませんか？
文脈はフォーマルですか（法律、ビジネス、学術など）？
条件節は現在形ですか？
使われる場面
公式文書
- • 法的契約書
- • 利用規約
- • 求人票
- • 公式方針
プロフェッショナルな場面
- • ビジネス会議
- • 公式プレゼンテーション
- • 学術論文
- • メールでのやり取り
重要な規定
- • 前提条件
- • 合意条件
- • 特定の要件
- • 重要なアドバイス
レベル別の例文
I will play with you provided that you share.
I will play with you if you share.
You can have cake provided that you eat dinner.
You can have cake if you eat dinner.
I'll go provided you go.
I'll go if you go.
We can walk provided that it is sunny.
We can walk if it is sunny.
I'll buy the phone provided that it isn't too expensive.
I'll buy it if the price is okay.
Providing that you have a ticket, you can enter.
If you have a ticket, you can enter.
He can stay here provided that he is quiet.
He can stay if he doesn't make noise.
I'll help you with math provided that you help me with English.
I'll help if you help me back.
The bank will lend us the money provided that we have a good plan.
The loan depends on our plan.
Providing that the weather stays clear, the flight will take off.
The flight depends on the weather.
You can borrow my laptop provided that you don't change the settings.
Don't change anything and you can use it.
I'll take the job provided that the salary is competitive.
I'll work there if the pay is good.
The merger will proceed provided that the shareholders approve the deal.
The deal needs shareholder approval.
Providing that no further delays occur, we should finish by Friday.
We'll finish if there are no more problems.
You may park here provided that you display a valid permit.
A permit is required for parking.
The warranty is valid provided that the product has been used correctly.
The warranty depends on correct usage.
The witness agreed to testify provided that his identity remained confidential.
He will talk only if he stays anonymous.
Providing that the fundamental assumptions are correct, the theory holds water.
The theory is valid if the basics are right.
The ceasefire will hold provided that both parties withdraw from the border.
Peace depends on withdrawal.
I am willing to overlook the error provided that it does not happen again.
I'll forgive you if this is the last time.
The legislation will pass provided that the proposed amendments are incorporated.
The law needs the changes to pass.
Providing that the requisite funding is secured, the expansion will commence.
We need the money to start.
The artifacts may be displayed provided that the humidity is strictly controlled.
Display is allowed under strict conditions.
He was granted bail provided that he surrendered his passport to the court.
Bail was conditional on giving up the passport.
間違えやすい
Learners often think 'unless' and 'provided that' are the same, but they are opposites.
They have the same meaning, but different registers.
Both introduce conditions, but 'supposing' is for imagination.
よくある間違い
I'll go provided that you will go.
I'll go provided that you go.
I go provided that you go.
I will go provided that you go.
Provided that you go? I'll go.
If you go, I'll go.
I'll help provided that you helping me.
I'll help provided that you help me.
He'll come provided that he don't work.
He'll come provided that he doesn't work.
I'll buy it provided that it is cheap.
I'll buy it provided that it's cheap.
Providing that you are hungry, we eat.
Providing that you are hungry, we will eat.
The deal is off provided that you pay.
The deal is on provided that you pay.
I'll sign provided that you would change the price.
I'll sign provided that you change the price.
Provided that the sun shines, we go to the beach.
Provided that the sun shines, we'll go to the beach.
The project will fail provided that we work hard.
The project will succeed provided that we work hard.
Provided that the data is accurate, which it is.
The theory is sound, provided that the data is accurate.
He was granted leave provided that he will return.
He was granted leave provided that he returned/returns.
Providing that the terms are met, the contract was signed.
Provided that the terms were met, the contract was signed.
文型パターン
I will ___ provided that you ___.
The ___ will be successful provided that ___.
Provided that ___, there is no reason why ___.
___ is permitted provided that ___.
Real World Usage
I can start on Monday provided that we agree on the salary.
I'll come to the gym provided I wake up on time!
You may use this service provided that you are over 13 years old.
You can go out provided that you finish your chores first.
We'll reach the hotel by 6 PM provided that there's no traffic.
The results are valid provided that the sample size is sufficient.
I'll have the burger provided that it doesn't have onions.
The offer is accepted provided that the home inspection is clear.
フォーマル度メーターをチェック！
時制の落とし穴に注意！
「that」を省略してスッキリ！
法律家のような響き！
Smart Tips
Swap 'if' for 'provided that' to sound more decisive and professional.
Stop! Replace 'will' with the present simple immediately.
Drop the 'that' to sound more like a native speaker.
Use 'provided that' to show that your agreement is not unconditional.
発音
Stress on 'vided'
In 'provided', the stress is on the second syllable.
Stress on 'viding'
In 'providing', the stress is also on the second syllable.
Linking 'that'
The 'd' in 'provided' often links smoothly to the 'th' in 'that'.
Rising-Falling
I'll go (rise) provided that you go (fall).
The rise on the result clause creates anticipation for the condition.
暗記しよう
記憶術
Pro-vided = Pro-mise. You are making a promise that depends on a condition.
視覚的連想
Imagine a handshake between two people. One person is holding a document (the condition) and the other is holding a gift (the result). The gift is only handed over when the document is signed.
Rhyme
The deal is fine, provided you sign on the line.
Story
A king tells a knight, 'I will give you the gold provided that you slay the dragon.' The knight slays the dragon (the condition) and then receives the gold (the result). Without the dragon being slain, the gold stays in the castle.
Word Web
チャレンジ
Write down three 'deals' you have made this week using 'provided that'. For example: 'I will cook dinner provided that you wash the dishes.'
文化メモ
In the UK, 'provided that' is very common in formal letters and legal documents. It is seen as a mark of professional politeness.
Americans often use 'as long as' in place of 'provided that' in speech, reserving 'provided that' for business contracts or serious promises.
In global legal English, 'provided that' is used to introduce a 'proviso'—a clause that modifies or limits the preceding statement.
The word 'provide' comes from Latin 'providere' (to see ahead, prepare).
会話のきっかけ
Would you move to another country provided that you were offered a high salary?
What is one thing you would do for a friend provided that they asked you nicely?
Do you think people can be happy provided that they have enough money?
Would you agree to work on weekends provided that you got extra vacation days?
日記のテーマ
よくある間違い
Test Yourself
The refund will be processed, ___ you submit the original receipt.
Find and fix the mistake:
The project will succeed provided that everyone *will work* hard.
Choose the correct sentence:
Translate into English: 'Pueden utilizar la sala, con la condición de que la dejen limpia.'
Answer starts with: ["Y...
Score: /4
練習問題
8 exercisesI will lend you my car provided that you ___ (drive) carefully.
The company will hire him ___ he passes the background check.
Find and fix the mistake:
Providing that it will be sunny tomorrow, we will go to the park.
If you don't make a mess, you can use the kitchen.
'Provided that' and 'Providing that' have the same meaning.
A: Can I borrow your notes? B: Yes, ___ you return them tomorrow.
Select the formal option.
1. You can stay... 2. We'll arrive... 3. I'll pay...
Score: /8
Practice Bank
12 exercisesThe manager approved the request, ___ the deadline is met.
The scholarship will be renewed, ___ the student maintains a GPA of 3.5.
`Provided that` you *will attend* all sessions, you will receive a certificate.
Hey, we can chill later, `providing that` you'll pick up some snacks.
Select the grammatically correct and appropriate sentence:
Which of these official statements is correct?
Translate into English: 'La beca será válida, con la condición de que mantengas buenas calificaciones.'
Translate into English: 'Las nuevas regulaciones entrarán en vigor, con la condición de que el parlamento las apruebe.'
これらの単語を意味のある文に並べ替えましょう。
これらの単語を文に並べ替えましょう。
節を組み合わせて論理的な文を作りましょう。
主節と厳格な条件を合わせましょう。
Score: /12
よくある質問 (8)
There is virtually no difference in meaning. `Provided that` is slightly more common in formal writing, while `providing that` is often used in speech. You can use either one in almost any situation.
Yes! For example: `Provided that you finish your work, you can leave early.` Just remember to use a comma after the condition clause.
No, `that` is optional. In casual conversation, people usually say `provided you...` or `providing you...`. In formal writing, it's better to keep `that`.
Yes, but you need to change the tenses. `He would have come provided that he had been invited.` This follows the third conditional pattern.
In English, we don't use `will` in conditional clauses (the part after 'if', 'when', or 'provided that'). We use the present simple to talk about the future in these cases.
Yes, much more formal. `As long as` is great for friends; `provided that` is better for business, law, or serious agreements.
It's rare but possible. `Will you help me provided that I pay you?` Usually, we use `if` for questions because it's simpler.
Yes. `I'll go provided that he doesn't come.` This means his absence is the condition for your presence.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
siempre que / a condición de que
Spanish requires the subjunctive mood, whereas English uses the indicative.
pourvu que / à condition que
The mood of the following verb (subjunctive vs. indicative).
vorausgesetzt, dass
German word order (verb at the end of the 'dass' clause).
～という条件で (~to iu jouken de)
Word order and the use of particles instead of conjunctions.
بشرط أن (bi-shart an)
Arabic often uses a different verb mood (mansub) after 'an'.
只要...就 (zhǐyào...jiù)
Chinese requires a two-part structure (zhǐyào...jiù) whereas English only needs the conjunction.
Learning Path
Prerequisites
Learn These First
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