Unless در مقابل Until: تفاوت چیست؟
Grammar Rule in 30 Seconds
Use 'Unless' for a condition (if not) and 'Until' for a point in time (up to then).
- Unless = 'Except if' (Unless it rains, we'll go).
- Until = 'Up to that time' (I'll wait until 5 PM).
- Don't use 'will' immediately after either word in a future context.
مرور کلی
unless و until برخورد کردهاید و متوجه شدهاید که کاربرد متفاوتی دارند، اما دلیل این تفاوت گاهی گیجکننده به نظر میرسد. در زبان فارسی، ما برای بیان شرط از «اگر... نه» استفاده میکنیم و برای بیان زمان از «تا» یا «تا زمانی که».unless به مفهوم «شرط» (Condition) و until به مفهوم «زمان» (Time) اشاره دارد. این دو کلمه به هیچ وجه قابل جایگزینی با یکدیگر نیستند. انتخاب درست این کلمات برای داشتن بیانی دقیق و منطقی در انگلیسی ضروری است.unless را مانند یک کلید خاص برای یک قفل تصور کنید. این کلمه تنها شرطی را معرفی میکند که نتیجه را تغییر میدهد. برای مثال: The door will remain locked unless you use the red key. در اینجا وضعیت پیشفرض «قفل بودن» است و تنها استفاده از «کلید قرمز» این وضعیت را تغییر میدهد.if...not (اگر... نه) است.until مانند یک کرونومتر عمل میکند. این کلمه نقطه پایان یک دوره زمانی یا یک فعالیت مداوم را نشان میدهد. برای مثال: The alarm will ring until you press the button. در اینجا عملِ «زنگ زدن» به صورت مداوم ادامه دارد و «فشردن دکمه» لحظهای است که این استمرار متوقف میشود.Unless: حرف ربط شرطی منفیUnless یک شرط منفی ایجاد میکند و به معنای «مگر اینکه» یا «اگر... نه» است. در فارسی، ما معمولاً از «اگر... نه» استفاده میکنیم، اما در انگلیسی unless برای تأکید بیشتر به کار میرود.You will fail the course unless you pass the final exam.- تحلیل: نتیجه پیشفرض «افتادن در درس» است. تنها چیزی که میتواند این نتیجه را تغییر دهد، «قبولی در امتحان نهایی» است.
- ترجمه: «شما در درس مردود میشوید اگر در امتحان نهایی قبول نشوید.»
unless برای برجسته کردن شرط به عنوان تنها استثنا به کار میرود. این کلمه در قوانین، هشدارها و الزامات بسیار رایج است.Until: حرف ربط زمانیUntil مرز زمانی را مشخص میکند. این کلمه نقطه پایان یک کنش یا وضعیت مداوم را نشان میدهد. در فارسی، معادل مستقیم آن «تا» یا «تا وقتی که» است.I will be working on this project until 5 PM.- تحلیل: عمل «کار کردن روی پروژه» مداوم است و نقطه پایان آن «ساعت ۵ عصر» است.
until به تعریف «نمود» (Aspect) فعل کمک میکند. این کلمه عمل اصلی را به صورت «تداومی» (Durative) نشان میدهد. اغلب، جمله اصلی منفی است و وضعیتی از «انجام ندادن کاری» را توصیف میکند که تا لحظه خاصی ادامه دارد.He didn't speak until the presentation was over. (او تا پایان ارائه صحبت نکرد.)unless و until مشابه است، اما معنای آنها متفاوت است. در اینجا الگوهای اصلی را بررسی میکنیم.until + جمله پیرو | We played chess until the sun went down. | عمل اصلی تا زمان غروب آفتاب ادامه داشت. |unless + جمله پیرو | The company will fail unless it innovates. | شرکت شکست میخورد مگر اینکه نوآوری کند. |Until + جمله پیرو + ، + جمله اصلی | Until you finish your training, you won't be assigned. | شرط زمانی ابتدا آمده و با ویرگول جدا شده است. |Unless + جمله پیرو + ، + جمله اصلی | Unless there is an emergency, do not call. | شرط ابتدا آمده و با ویرگول جدا شده است. |will در جمله پیرو است. طبق قانون انگلیسی، فعل در جمله پیروِ unless یا until باید به صورت حال ساده (Simple Present) باشد، حتی اگر جمله اصلی آینده باشد.I will wait until she will arrive. | I will wait until she arrives. | رسیدن او یک نقطه زمانی در آینده است. |You won't get the job unless you will interview well. | You won't get the job unless you interview well. | مصاحبه خوب شرط لازم است. |unless:- 1معرفی تنها استثنا:
unlessقدرتمند است چون انحصاری است. یعنی تنها عاملی که وضعیت را تغییر میدهد همین است.
We are proceeding with the launch unless the CEO vetoes it.(فقط وتوی مدیرعامل مانع میشود.)
- 1هشدار یا تهدید: به دلیل ماهیت تأکیدی، برای اولتیماتومها عالی است.
Unless you stop, I'm going to leave.
until:- 1نشان دادن پایان یک کنش مداوم:
She stared at the screen until her eyes began to blur.
- 1نشان دادن زمان شروع یک کنش جدید (بعد از یک دوره توقف): وقتی جمله اصلی منفی است،
untilلحظهای را نشان میدهد که عمل میتواند آغاز شود.
You can't have dessert until you finish your vegetables.(خوردن دسر تا پایان سبزیجات ممنوع است.)
- 1تعیین مهلت (Deadline):
You have until midnight to submit.
- 1استفاده از
unlessبرای موقعیتهای غیرواقعی: برای جملات شرطی نوع دوم (Hypothetical) که غیرواقعی هستند، باید ازif...notاستفاده کرد، نهunless.
- نادرست:
I would buy it unless it were expensive. - درست:
I would buy it if it weren't expensive.
unless را به جای if...not به کار میبرند.- 1استفاده از
untilبرای افعال لحظهای:untilنیاز به فعلی دارد که قابلیت استمرار داشته باشد. استفاده از آن با افعال لحظهای (Punctual) اشتباه است.
- نادرست:
I broke my leg until the doctor fixed it. - درست:
I had a broken leg until the doctor fixed it.(داشتنِ پا شکسته یک حالت مداوم است).
- 1فراموش کردن فاعل در جمله پیرو: در فارسی ما اغلب فاعل را حذف میکنیم (Pro-drop)، اما انگلیسی نیاز به فاعل صریح دارد.
- نادرست:
Wait until finish. - درست:
Wait until you finish.
Unless | Until |if...not | up to the time when |- 1آیا میتوانم همیشه به جای
unlessازif...notاستفاده کنم؟
if...not جایگزین درستی است، اما unless تأکید بیشتری بر «تنها استثنا» دارد.- 1آیا
untilهمیشه به معنای پایان یک کار است؟
until همیشه نقطه پایانی برای یک وضعیت یا کنش مداوم است.- 1چرا نباید بعد از
untilازwillاستفاده کنم؟
Clause Structure with Unless and Until
| Conjunction | Clause Type | Verb Tense (Future Context) | Example |
|---|---|---|---|
|
Unless
|
Dependent
|
Present Simple
|
Unless it **rains**...
|
|
Until
|
Dependent
|
Present Simple
|
Until he **calls**...
|
|
Unless
|
Main
|
Future (will)
|
...we **will go**.
|
|
Until
|
Main
|
Future (will)
|
...I **will wait**.
|
Informal Contractions
| Full Form | Short Form | Usage Note |
|---|---|---|
|
Until
|
Till
|
Very common in speech and informal writing.
|
|
Until
|
'Til
|
Common in songs and poetry; less formal.
|
|
Unless
|
N/A
|
Unless has no standard short form.
|
Meanings
These are subordinating conjunctions used to connect a dependent clause to a main clause. 'Unless' introduces a negative condition, while 'until' indicates the duration of an action up to a specific point.
Unless as 'Except If'
Used to introduce the only situation in which something will not happen.
“Unless you study, you will fail.”
“I'll be there at 8:00, unless the train is late.”
Until as 'Up to the point'
Used to show how long a situation continues.
“I will wait until you arrive.”
“The shop is open until midnight.”
Unless as an Afterthought
Used at the end of a sentence to add a possible exception.
“I'm sure he's at home. Unless he went to the gym.”
“We should be fine. Unless the boss changes his mind.”
Reference Table
| جنبه | Unless (شرط) | Until (زمان) |
|---|---|---|
|
کارکرد
|
معرفی یک استثنا یا شرط
|
مشخص کردن نقطه پایانی یک دوره زمانی
|
|
معنی اصلی
|
مگر اینکه...
|
تا زمانی که...
|
|
به کدام سوال جواب میدهد؟
|
تحت چه شرطی؟
|
برای چه مدتی؟ چه زمانی تمام میشود؟
|
|
جایگزین میشود با
|
`if... not`
|
`up to the point when`
|
|
مثال
|
`The game is on unless it rains.`
|
`The game is on until it gets dark.`
|
|
منطق
|
شرطی (الف اتفاق میافتد، مگر اینکه ب اتفاق بیفتد)
|
زمانی (الف برای مدتی اتفاق میافتد، سپس در زمان ب متوقف میشود)
|
طیف رسمیت
Admission is prohibited unless a valid ticket is presented. (Event entry)
You can't go in unless you have a ticket. (Event entry)
No ticket, no entry. (Event entry)
Gotta have a ticket or you're out. (Event entry)
Unless و Until: تصویر کلی
شرطی
- Unless به معنی 'مگر اینکه'. یک الزام تعیین میکند.
زمانی (زمان)
- Until به معنی 'تا نقطهی'. یک مهلت تعیین میکند.
مقایسه رو در رو: Unless در مقابل Until
کدام کلمه را استفاده کنیم؟
آیا جملهی شما مربوط به یک دوره زمانی یا مهلت است؟
آیا جملهی شما یک استثنا یا شرط 'اگر نه' است؟
مثالهای دنیای واقعی
از `Unless` برای...
- • تعیین یک الزام
- • دادن یک استثنا
- • بیان یک شرط
از `Until` برای...
- • مشخص کردن یک مهلت
- • پایان دادن به یک دوره
- • تعیین یک برنامه زمانی
مثالها بر اساس سطح
I will stay here until Monday.
I will stay here until Monday.
Don't eat the apple unless you wash it.
Don't eat the apple unless you wash it.
Wait until the bus stops.
Wait until the bus stops.
I don't drink coffee unless it has milk.
I don't drink coffee unless it has milk.
We can't play tennis unless the rain stops.
We can't play tennis unless the rain stops.
She slept until 10:00 AM yesterday.
She slept until 10:00 AM yesterday.
You shouldn't call him unless it's an emergency.
You shouldn't call him unless it's an emergency.
I'll wait in the car until you come back.
I'll wait in the car until you come back.
Unless we reduce costs, the company will close.
Unless we reduce costs, the company will close.
The negotiations continued until a deal was reached.
The negotiations continued until a deal was reached.
I won't be able to finish this unless you help me.
I won't be able to finish this unless you help me.
Keep stirring the sauce until it becomes thick.
Keep stirring the sauce until it becomes thick.
Unless otherwise stated, all prices include tax.
Unless otherwise stated, all prices include tax.
He didn't realize his mistake until it was too late.
He didn't realize his mistake until it was too late.
I'm not leaving this office until I get an answer.
I'm not leaving this office until I get an answer.
Unless you've lived there, you can't understand the culture.
Unless you've lived there, you can't understand the culture.
The law remains in effect until such time as it is repealed.
The law remains in effect until such time as it is repealed.
Unless we address the root cause, the symptoms will persist.
Unless we address the root cause, the symptoms will persist.
It was not until the 19th century that the city expanded.
It was not until the 19th century that the city expanded.
I'll be there at six—unless, of course, the flight is delayed.
I'll be there at six—unless, of course, the flight is delayed.
The treaty is void unless ratified by all member states.
The treaty is void unless ratified by all member states.
The tension built until it reached a breaking point.
The tension built until it reached a breaking point.
Unless one is prepared to fail, one cannot truly succeed.
Unless one is prepared to fail, one cannot truly succeed.
The status quo will prevail until a viable alternative emerges.
The status quo will prevail until a viable alternative emerges.
بهراحتی اشتباه گرفته میشود
Learners often use 'until' for deadlines.
Learners forget that 'unless' is inherently negative.
Both can describe duration.
اشتباهات رایج
I wait unless 5:00.
I wait until 5:00.
I don't go until it rains.
I don't go unless it rains.
I'll stay until he will come.
I'll stay until he comes.
Unless you don't eat, you'll be hungry.
Unless you eat, you'll be hungry.
I'll wait unless you are ready.
I'll wait until you are ready.
The shop is open unless 9 PM.
The shop is open until 9 PM.
Unless it will be cold, we'll swim.
Unless it is cold, we'll swim.
I won't pay until you don't fix it.
I won't pay until you fix it.
He didn't leave unless he finished.
He didn't leave until he finished.
I'll be there unless the bus will be late.
I'll be there unless the bus is late.
Until we don't find a solution, the problem remains.
Until we find a solution, the problem remains.
الگوهای جملهسازی
I will wait here until ___.
You can't ___ unless you ___.
Unless ___ happens, we will ___.
It was not until ___ that ___.
Real World Usage
I won't be able to start unless I give two weeks' notice.
I'm out 'til 8, see ya then!
Please wait until the doors are opened.
Bake until the edges are golden brown.
Unless otherwise agreed, the license is non-transferable.
Not moving from this couch until Monday.
فکر کن: «اگر نه» در مقابل «تا زمان»
بعد از اینها از «Will» استفاده نکن!
will rain'.از «Unless» برای تأکید استفاده کن
Unless... تأکید زیادی روی شرط داره. 'Unless you have a ticket, you cannot enter' خیلی قویتر از 'You cannot enter unless you have a ticket' هست.«'Til»، «Till» یا «Until»؟
Smart Tips
Always reach for 'until'. Conditions are rarely just a date or time.
Stop! Replace 'unless' with 'if' in your head. You wouldn't say 'if it will rain', so don't say 'unless it will rain'.
Use 'unless otherwise [verb]'. It's a standard professional phrase.
Remember that 'not... until' often means 'finally happened at'.
تلفظ
Until vs. Till
In 'until', the stress is on the second syllable /ʌnˈtɪl/. In the informal 'till', it's a single stressed syllable /tɪl/.
Unless Stress
The stress is on the second syllable /ʌnˈles/.
Rising intonation on the dependent clause
Unless it RAINS (up), we'll go (down).
Shows that the condition is being established before the result.
حفظ کنید
روش یادسپاری
U**n**less is for a **N**egative condition (If Not). U**nt**il is for **T**ime.
تداعی تصویری
Imagine 'Until' as a long timeline with a big 'X' at the end. Imagine 'Unless' as a locked gate that only opens if you have a specific key (the condition).
Rhyme
Until marks the clock, Unless turns the lock.
Story
A traveler is walking through a desert. He says, 'I will walk **until** the sun sets' (Time). Then he sees a magic cave and says, 'I cannot enter **unless** I say the magic word' (Condition).
شبکه واژگان
چالش
Write two sentences about your plans for tomorrow. Use 'until' to describe when you will finish work/study, and 'unless' to describe what might change your plans.
نکات فرهنگی
The word 'till' is very common in British English and is not considered 'incorrect' even in many professional contexts, though 'until' is still preferred for formal writing.
Americans often use 'until' in formal writing but 'til (with an apostrophe) is frequently seen in advertising and informal signs.
In legal documents, 'unless and until' is a common redundant phrase used to cover both conditions and time simultaneously to avoid any loopholes.
'Until' comes from Old Norse 'und' (as far as) + 'til' (to). 'Unless' comes from the Middle English phrase 'on lesse than' (in a less state than).
شروعکنندههای مکالمه
What are you planning to do until the weekend?
I won't buy a new phone unless my old one breaks. How about you?
What's a goal you won't stop working toward until you achieve it?
In your country, what are the rules for driving? (e.g., You can't drive unless...)
موضوعات نگارش
اشتباهات رایج
Test Yourself
I'm going to keep studying ___ I understand this topic completely.
Choose the correct sentence:
The meeting will be canceled until we find a new speaker.
Score: /3
تمرینهای عملی
8 exercisesWe will stay at the beach ___ the sun goes down.
I can't help you ___ you tell me what happened.
Find and fix the mistake:
I will wait until he will arrive.
If it doesn't snow, we will go skiing.
You can use 'will' after 'unless' to talk about the future.
A: Are you coming to the party? B: I won't know ___ I finish my homework.
I'll be working ___ 6:00 PM.
1. Unless, 2. Until
Score: /8
Practice Bank
11 exercisesWe can't confirm the booking ___ you pay the deposit.
He read the book from cover to cover ___ he fell asleep.
Select the most natural-sounding sentence:
Match the conjunction with its meaning:
I will wait unless the clock strikes twelve.
My phone will keep ringing until I find it.
Translate: 'No salgas a menos que tengas un paraguas.'
Translate: 'Puedes usar mi coche hasta el viernes.'
Arrange these words into a sentence:
Arrange these words into a sentence:
Select the correct sentence for a future situation:
Score: /11
سوالات متداول (8)
Yes! Just remember to put a comma after the first clause. Example: `Unless you hurry, we'll be late.`
No, 'till' is a perfectly valid word with a long history. It is more common in speech, but it's not 'slang'.
`Until` is for an action that continues up to a point. `By` is for an action that happens at or before a deadline.
Usually, no. Since `unless` means 'if not', adding another negative makes it a double negative and very confusing.
No, it can refer to the past too. Example: `He stayed until the party ended.`
Use `unless` when you want to emphasize that the condition is the *only* exception.
Yes, it is used in legal and very formal documents to sound more precise.
Yes, in some contexts like `I eat everything unless it's spicy.`
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Hasta (until) / A menos que (unless)
English doesn't require a special mood (subjunctive) after unless.
Jusqu'à (until) / À moins que (unless)
French often adds an extra 'ne' after 'à moins que' that English doesn't have.
Bis (until) / Es sei denn (unless)
Word order in German changes significantly with these conjunctions.
~made (until) / ~nai kagiri (unless)
English conjunctions come before the clause; Japanese equivalents come after.
Hatta (until) / Illa idha (unless)
Arabic 'Hatta' can also introduce a result, not just a time limit.
Zhi dao (until) / Chu fei (unless)
Chinese often requires a 'partner' word in the main clause to complete the thought.
Learning Path
Prerequisites
ویدیوهای مرتبط
Related Grammar Rules
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