Grammar Rule in 30 Seconds
Use 'If + Present Simple' and 'Can + Verb' to talk about future things that are possible or allowed.
- The 'if' part uses Present Simple: 'If it rains...'
- The result part uses 'can' + base verb: '...we can stay home.'
- Use 'can' instead of 'will' to show ability or permission, not just certainty.
Overview
will(일어날 것)인지에 대해서만 이야기하는 것이 아닙니다. 어떤 일이 can(일어날 수 있는지)에 대해 이야기하는 것이죠.will에서 can으로의 이 미묘한 변화는 분위기를 확정된 결과에서 가능성, 허락, 그리고 새로운 능력의 세계로 바꿔 놓습니다. «파티에 가게 될 거야(You will go)»(명령이나 예측)와 «파티에 가도 좋아(You can go)»(여러분이 기다려온 청신호)의 차이인 셈이죠.How This Grammar Works
can을 사용한 제1 조건문은 허락, 기회 또는 능력이 포함된 실제 생활의 결과에 대해 이야기할 때 가장 유용한 도구입니다. 과학적 확실성이나 굳은 약속처럼 느껴지는 표준 will 버전과 달리, can 버전은 훨씬 더 유연합니다.
Formation Pattern
if 절): if 다음에 현재 시제(Present Simple)를 사용합니다. 미래에 대해 이야기하더라도 동사는 현재형으로 유지합니다.
can 절): can 다음에 동사의 원형(Base Form)을 사용합니다(to, -ing, -ed 등은 붙이지 않습니다).
If + [주어] + [현재 시제 동사], [주어] + can + [동사 원형].
If you pass the test, you can borrow my car. (시험에 합격하면, 내 차를 빌려 가도 좋아.)
can 부분이 먼저 오면 쉼표(comma)가 필요 없습니다.
can borrow my car if you pass the test. (시험에 합격하면 내 차를 빌릴 수 있어.)
if로 시작하면 방지턱이 필요합니다. if가 중간에 오면 접착제 역할을 하므로 방지턱이 필요 없죠. 간단한 규칙이지만 쉼표를 잊어버리면 어디선가 문법 선생님이 뒷목을 잡으실지도 모릅니다.
When To Use It
can이 빛을 발하는 네 가지 주요 순간은 다음과 같습니다.- 허락하기: 가장 대표적인 경우입니다. «집안일을 다 끝내면 발로란트(Valorant)를 해도 좋아.» 여기서 여러분은 보스입니다. 조건은 허락을 받기 위해 지불하는 대가입니다.
- 능력 표현하기: «통역사를 찾으면 메뉴를 이해할 수 있어.» 이것은 허락에 관한 것이 아니라, 그 행동이 신체적 또는 정신적으로 가능한지에 관한 것입니다.
- 선택지 제안하기: «배고프면 초밥을 시킬 수도 있어.» 반드시 시키겠다는 뜻이 아니라, 실행 가능한 선택지로 제시하는 것입니다. 정중하고 부담이 없죠.
- 규칙/시스템 설명하기: «학생증이 있으면 할인을 받을 수 있습니다.» 이것은 세상이 어떻게 돌아가는지 설명합니다. 앱, 웹사이트, 그리고 모든 관공서의 논리입니다.
can을 사용하면 도움이 되고 유연한 사람처럼 느껴집니다. 조건문 가족 중 '쿨한 형/누나' 같은 존재죠.
Common Mistakes
- 1'Will'의 함정: 많은 사람이
if절에will을 넣으려고 합니다.If I will see him, I can tell him.안 됩니다. 당장 멈추세요.if절은 항상 현재 시제를 유지합니다.If I see him, I can tell him. - 2'To'에 대한 집착:
can뒤에to를 쓰지 마세요.If it rains, we can to stay home.이런. 그냥can stay입니다.can구역에는to출입 금지입니다. - 33인칭 단수 S:
if절에서he/she/it에 대한s를 잊지 마세요.If she go, she can see.틀렸습니다.If she goes, she can see.하지만can뒤의 동사에는 절대로s를 붙이지 마세요.She can goes는 문법적 범죄입니다. - 4쉼표 드라마: 언급했듯이
If로 시작하면 쉼표를 쓰세요. 그렇지 않으면 독자들은 머릿속으로 문장을 읽다가 숨이 막힐 것입니다.
Contrast With Similar Patterns
will이나 could 대신 언제 can을 써야 할지 어떻게 알까요?- Can vs Will: 확실한 결과에는
will을 씁니다.If you jump, you will fall.(중력은 가차 없죠). 가능성이나 허락에는can을 씁니다.If you jump, you can win the prize.(점프하지 않을 수도 있지만, 선택지는 있습니다). - Can vs Could: 이것은 현실성의 문제입니다.
can은 제1 조건문(실제 가능성)에 씁니다.If I have money, I can buy it.(곧 돈이 생길지도 모름).could는 제2 조건문(상상/희박함)에 씁니다.If I had a billion dollars, I could buy an island.(난 10억 달러가 없고, 지금은 컵라면을 먹고 있죠). - Can vs May: 둘 다 허락에 쓸 수 있지만, 현대 구어체 영어에서는
can이 훨씬 더 흔합니다.may는 실크 모자에 외눈 안경을 쓴 것 같은 느낌을 줍니다. 아주 격식 있는 Zoom 회의가 아니라면can을 고수하세요.
Quick FAQ
이 문장들에 can't를 쓸 수 있나요?
당연하죠! If you don't have a ticket, you can't enter. 부정적인 결과에 대해서도 똑같이 작동합니다.
질문을 하고 싶으면 어떡하죠?
주절의 순서만 바꾸면 됩니다. If I finish early, can I leave? 또는 Can I leave if I finish early?
if 대신 다른 단어를 써도 되나요?
네! when, as soon as, unless 모두 같은 패턴으로 작동합니다. Unless you pay, you can't watch. (참고: unless는 if not의 뜻입니다).
비즈니스 이메일에서 써도 괜찮을까요?
네, 매우 흔합니다. If you are available on Tuesday, we can discuss the project. 전문적이면서도 협력적인 느낌을 줍니다.
can은 항상 허락을 의미하나요?
항상 그렇지는 않습니다. 때로는 단순히 «가능하다»는 뜻이기도 합니다. 맥락이 중요하죠! 상사에게 말하는 중이라면 허락이고, 날씨에 관해 이야기하는 중이라면 가능성입니다.
Structure of First Conditional with 'Can'
| Clause Type | Grammar Structure | Example |
|---|---|---|
|
Condition (If-Clause)
|
If + Subject + Present Simple
|
If you study hard,
|
|
Result (Main Clause)
|
Subject + Can + Base Verb
|
you can pass the exam.
|
|
Negative Result
|
Subject + Cannot (Can't) + Base Verb
|
you can't go out.
|
|
Question Form
|
Can + Subject + Base Verb + If...?
|
Can we go if it stops raining?
|
Contractions in the Result Clause
| Full Form | Contraction | Usage Note |
|---|---|---|
|
cannot
|
can't
|
Most common in speech and informal writing.
|
|
can not
|
N/A
|
Rarely written as two words unless for extreme emphasis.
|
Meanings
A structure used to express that a future outcome is possible (ability) or permitted (permission) only if a specific condition happens first.
Future Ability
Expressing that someone will have the skill or opportunity to do something if a condition is met.
“If I find my glasses, I can read the map.”
“If we save enough money, we can buy a new car next year.”
Future Permission
Expressing that someone will be allowed to do something if they fulfill a requirement.
“If you eat your vegetables, you can have dessert.”
“If she passes the test, she can borrow my car.”
Theoretical Possibility
Suggesting a potential option among many if a situation occurs.
“If the hotel is full, we can sleep in the van.”
“If you are lost, you can call me anytime.”
Reference Table
| 상황 종류 | If 절 (조건) | 주절 (결과) | 강조점 |
|---|---|---|---|
|
Ability/Opportunity
|
If you study hard
|
you can pass the exam
|
Capability
|
|
Permission
|
If you finish your chores
|
you can watch TV
|
Allowance
|
|
Negative Ability
|
If it snows heavily
|
we can't drive
|
Lack of Capability
|
|
Negative Permission
|
If you don't have a ticket
|
you can't enter
|
Prohibition
|
|
Question (Permission)
|
If I finish early
|
can I leave?
|
Asking for Allowance
|
|
Question (Ability)
|
If it's sunny
|
can we go hiking?
|
Asking about Possibility
|
격식 수준 스펙트럼
If your tasks are completed, you can depart for the day. (Workplace)
If you finish your work, you can go home. (Workplace)
If you're done, you can head out. (Workplace)
If you're through, you can bail. (Workplace)
'can'과 함께 쓰는 첫 번째 조건문 상세 분석
구조
- If + Simple Present 조건절
- Subject + Can + Base Verb 주절
핵심 의미
- Ability 할 수 있는
- Permission 해도 되는
- Opportunity 기회
주요 예시
- If it rains, we can stay inside. 능력
- You can go if you finish. 허락
첫 번째 조건문에서 'Can' vs. 'Will' 비교
첫 번째 조건문에서 'Can' 사용 결정하기
상황이 실제적이거나 일어날 가능성이 있는 미래의 일인가요?
결과에서 능력, 허락 또는 기회를 표현하고 싶나요?
'if' 절이 단순 현재 시제인가요?
조건문에서 'can'의 일상생활 활용
계획하기
- • If it's sunny, we can go to the park.
- • If you finish early, we can get coffee.
협상하기
- • If you help me, I can finish faster.
- • You can borrow my car if you fill the tank.
허락 구하기/해주기
- • If I finish, can I leave?
- • You can watch TV if your homework is done.
능력 진술하기
- • If I practice, I can improve.
- • If the system upgrades, it can handle more data.
수준별 예문
If I see him, I can say hello.
If I see him, I can say hello.
If you are hungry, you can eat an apple.
If you are hungry, you can eat an apple.
If it is sunny, we can go to the park.
If it is sunny, we can go to the park.
If you have a pen, I can write the name.
If you have a pen, I can write the name.
If you don't hurry, you can't catch the bus.
If you don't hurry, you can't catch the bus.
If she likes the dress, she can buy it.
If she likes the dress, she can buy it.
If we have a map, we can find the museum.
If we have a map, we can find the museum.
Can I watch TV if I finish my homework?
Can I watch TV if I finish my homework?
If you book the tickets now, you can get a discount.
If you book the tickets now, you can get a discount.
If the Wi-Fi is slow, you can use the Ethernet cable.
If the Wi-Fi is slow, you can use the Ethernet cable.
We can go for a coffee if you have twenty minutes.
We can go for a coffee if you have twenty minutes.
If he doesn't feel better, he can't join the meeting.
If he doesn't feel better, he can't join the meeting.
If you provide a valid ID, you can access the building after hours.
If you provide a valid ID, you can access the building after hours.
If the company expands, we can hire more staff in the autumn.
If the company expands, we can hire more staff in the autumn.
You can't expect to improve if you don't practice consistently.
You can't expect to improve if you don't practice consistently.
If the software crashes, you can always restore the previous version.
If the software crashes, you can always restore the previous version.
If the negotiations stall, we can explore alternative suppliers.
If the negotiations stall, we can explore alternative suppliers.
If you look closely at the data, you can see a clear trend emerging.
If you look closely at the data, you can see a clear trend emerging.
If the government intervenes, they can stabilize the currency.
If the government intervenes, they can stabilize the currency.
We can hardly blame him if he decides to resign under these conditions.
We can hardly blame him if he decides to resign under these conditions.
If we concede this point, we can effectively dismantle their entire argument.
If we concede this point, we can effectively dismantle their entire argument.
If the market remains volatile, one can only speculate as to the long-term fallout.
If the market remains volatile, one can only speculate as to the long-term fallout.
If the author intended to provoke, she can certainly claim success.
If the author intended to provoke, she can certainly claim success.
If we are to succeed, we can afford no further delays.
If we are to succeed, we can afford no further delays.
혼동하기 쉬운
Learners mix up 'If I have time, I can help' (likely) with 'If I had time, I could help' (unlikely).
Learners use 'will' when they mean 'permission' or 'ability'.
Using 'if' for things that are 100% certain to happen.
자주 하는 실수
If I will see him, I can tell him.
If I see him, I can tell him.
If it rains, we will can't go.
If it rains, we can't go.
If he come, he can help.
If he comes, he can help.
If you are happy, you can to dance.
If you are happy, you can dance.
If you can help me, I will be happy.
If you help me, I can be happy.
We can go if it will be sunny.
We can go if it is sunny.
If she study, she can pass.
If she studies, she can pass.
If the weather is good, we will can go hiking.
If the weather is good, we can go hiking.
If I would have time, I can help.
If I have time, I can help.
If you'll finish early, you can go.
If you finish early, you can go.
문장 패턴
If you ___, you can ___.
We can ___ if the ___ is ___.
If ___ doesn't ___, we can't ___.
Can I ___ if I ___?
Real World Usage
If u r free later, we can grab food.
If you join our team, you can expect a great benefits package.
If I pay extra, can I get double cheese?
If your bag is overweight, you can pay the fee at the counter.
If you tidy your toys, you can watch a cartoon.
If the light is red, you can try restarting the router.
실제 가능한 상황을 찾아보세요!
'Will Can' 함정을 피하세요!
If you try hard, you can improve.
허락과 능력 표현의 힘!
You can use my car if you fill it up.
맥락이 정말 중요해요!
If you have questions, you can ask me.
쉼표 규칙도 중요해요!
Smart Tips
Just use 'can'. It's shorter, more natural, and means the same thing in a first conditional.
Use 'can' to show that the result is an option, not a requirement.
Stop! Check if the 'will' is right after 'if'. If it is, delete it.
Start the sentence with 'Can I...' to make it a question.
발음
The Weak 'Can'
In affirmative sentences, 'can' is usually unstressed and sounds like /kən/.
The Strong 'Can't'
In negative sentences, 'can't' is stressed and the vowel is clearer /kænt/ (US) or /kɑːnt/ (UK).
Rising-Falling
If it rains (rising), we can stay home (falling).
The rising tone on the if-clause shows the condition is pending; the falling tone on the result shows the conclusion.
암기하기
기억법
If the Present is the Key, then 'Can' is the Door you open.
시각적 연상
Imagine a gate with a sign that says 'IF'. Once you walk through the gate (the condition), you find a toolbox labeled 'CAN'. You can now use any tool inside.
Rhyme
If the first part is in the now, 'Can' will show you how!
Story
A boy wants to play video games. His mom says, 'If you clean your room, you can play.' He cleans (Present Simple), and suddenly the console turns on (Ability/Permission).
Word Web
챌린지
Write 3 things you can do this weekend if the weather is good.
문화 노트
British speakers often use 'can' in conditionals to be polite and indirect, especially when offering help. 'If you're struggling, I can give you a hand.'
In US business culture, 'can' is used in conditionals to emphasize 'can-do' attitude and problem-solving. 'If we hit a snag, we can pivot quickly.'
Australians frequently use 'can' in conditionals with 'reckon' to express a likely possibility. 'If it's hot, I reckon we can go for a swim.'
The word 'if' comes from Old English 'gif', and 'can' comes from 'cunnan' (to know how to).
대화 시작하기
What can you do if it rains this weekend?
If you win the lottery, what can you buy for your family?
If you have a free week, where can you travel?
If your boss offers you a promotion in another country, can you accept it?
일기 주제
자주 하는 실수
Test Yourself
If you study hard, you ___ pass the exam.
Find and fix the mistake:
If it will rain tomorrow, we can stay inside.
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Score: /3
연습 문제
8 exercisesIf she ___ (have) enough money, she ___ (can/buy) the car.
Choose the correct sentence:
Find and fix the mistake:
If you can to help me, I can finish early.
can / if / you / go / finish / you
Si tienes tiempo, puedes llamarme.
1. If it's hot... / 2. If you're tired... / 3. If you're lost...
Can I borrow your bike?
If we don't have a key, we ___ enter.
Score: /8
Practice Bank
12 exercisesIf the weather is good, we ___ go for a hike.
You would can join the club if you register online.
Choose the correct sentence:
Translate into English: 'Si termino mi trabajo, puedo ayudarte.'
Arrange these words into a sentence:
Match the 'if' clause with its appropriate 'can' result:
If I save enough, I ___ travel next summer.
If they had finished on time, they can relax now.
Which sentence is correct?
Translate into English: 'Puedes usar mi coche si lo devuelves mañana.'
Arrange these words into a sentence:
Match the beginning of the sentence to its ending:
Score: /12
자주 묻는 질문 (8)
Yes, but it changes the meaning. `Can` is for real/likely situations (First Conditional). `Could` is for imaginary/unlikely situations (Second Conditional).
Usually 'If I'. For example: 'If I go, I can buy it.' If you say 'If I can go', you are saying 'If I have the ability to go'.
In English, you cannot put two modal verbs together. You must use `can` alone or the phrase `will be able to`.
Only if the `if` clause comes first. 'If it rains, we can stay.' (Comma) vs 'We can stay if it rains.' (No comma).
Yes, `may` is more formal than `can` but follows the same rule: 'If it rains, we may stay home.'
It's for the future and for general truths/rules. 'If you have a ticket, you can enter' is a general rule.
The negative is `cannot` or `can't`. Example: 'If you don't pay, you can't stay.'
Yes! 'Can we go if I finish my work?' is a very common way to ask for permission.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Si + presente, poder (presente)
Spanish allows the future of 'poder', English does not allow 'will can'.
Si + présent, pouvoir (présent)
French speakers must avoid using the future after 'si', just like in English.
Wenn + Präsens, kann...
Word order: German moves the verb 'kann' to the start of the second clause.
〜たら、〜ことができる
Japanese marks the condition on the verb itself, not with a separate word like 'if'.
In + present, yumkin...
Arabic has several words for 'if' depending on how likely the situation is.
如果... 就可以...
Chinese grammar is very similar here, but it doesn't have verb conjugations for 'if'.
Learning Path
Prerequisites
Learn These First
관련 동영상
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