







In English we use should / shouldn't /ought to / oughtn't to give advice. We use should / ought to to say something is a good thing to do and shouldn't / oughtn't to say something is a bad thing to do.
Example sentences :
Note : To ask for advice we can say: What should I do?
In English, "can" is a modal verb and only has a present, past and conditional form. It can also be used with a future meaning.
Example sentences :
Note : Can is not used to talk about specific possibilities.
Example sentences :
In English, could is used to talk about past ability/ permission/ possibility.
Example sentences :
"Be able to" can be used in the present, past, future, present perfect and as a gerund or infinitive.
Example sentences :
Note : be able to in the present and past is more formal than can or could.
In English we use might or may to say something in the future is possible, but not decided.
Example sentences :
To make questions with might we usually use Do you think...?
Example questions :
In English we can also use might in short answers.
Example short answers :
In English we use have to + infinitive to say something is necessary or obligatory. We normally use have to for a general obligation from an outside source, such as work or the law.
Examples sentences :
In English we use don't have to + infinitive to say something is not necessary or obligatory. It means you can if you want to, but it's not necessary.
Example sentences :
To make questions we use do/does.
Example questions :
Form : ( Must + infinitive without to )
In English we use must + infinitive to talk about rules and obligations. We normally use must when the speaker imposes the obligation, such as a teacher to students, or even to yourself.
Form : ( Mustn't + infinitive without to )
In English we use mustn't + infinitive to say something is prohibited.
Example sentences :
Note : You can often use can't or be + not allowed to instead of mustn't.
Example sentences :
Note : Mustn't and don't have to have completely different meanings.
Mustn't Vs Don't Have To
Note : Have to is a normal verb and exists in all tenses whereas must is a modal verb and its only forms are must and mustn't.
You can also use have to and must for strong recommendations.
Example sentences :
In English we use must when we are sure something is true.
Example sentences :
In English we use may or might when we think something is possibly true.
Examples sentences :
In English we use can't when we are sure something is impossible.
Examples sentences :
Note : In this context, the opposite of must is can't, NOT mustn't!
In the past, can't, could, may, might and must for probability change to can't have, could have, may have, might have and must have + past participle (Verb 3).
In the past, should and ought to change to should have and ought to have + past participle (Verb 3).
Note : the form of "must" for obligation and "can" are exceptions.
Must for obligation changes to had to + infinitive
Can changes to could or was able to
| Modal example sentences | |
|---|---|
| Mike, you are cutting out, I can't hear you! | 마이크, 소리가 끊겨, 들리질 않아! |
| I'm not homophobic, but still you should've told me that before. | 호모포비아는 아니지만 그래도 말해줬어야지. |
| Then we might not be able to find it here, either. | 그럼 여기서도 못 찾을지도 모르겠다. |
| I can hear well, you don't have to shout at me, dear. | 나야 잘 들리니까, 그렇게 고함 지를 필요 없어요. |
| I thought you might not like strong coffees. | 커피 진한 거 안 좋아할까봐. |
| We can get the other things on the way back. | 나머지 것들은 돌아가는 길에 담으면 되잖아. |
| I can use incense for the smell... | 냄새 문제는 향을 피우면 되지... |
| I don't like bank holidays, we still have to work tomorrow! | 난 뱅크 홀리데이 싫어, 우리는 내일도 일해야 된다구! |
| It may help prevent wasting time for both sides. | 그럼 피차 간에 시간 낭비를 덜하게 될 거 아니에요. |
| I see, I can boil it first so you can use the water. | 알았어, 네가 육수 쓸 수 있도록 일단은 삶을게. |
| I brought one, maybe you should bring one, too. | 난 내 거 챙겼는데. 너도 필요할 지도 몰라. |
| Hm, I would like to see her, but I don't think we should disturb her. | 음, 보고 싶긴 한데, 방해하면 안될 것 같아. |
| Can't we rest now and continue tomorrow? | 일단 쉬었다가 내일 계속하면 안돼? |
| Umm, yeah, I think we should consider living in Angel, too. | 음, 실은 엔젤에 사는 것도 생각해봐야 하지 않을까 싶어. |
| You should, it might be more helpful to find some houses around here. | 확인하는 게 좋을 거야, 요 주변 집 찾는 데에 더 도움이 될 수도 있으니까. |
| We could use theirs for once. | 한번쯤은 우리가 남의 걸 쓰는 거지. |
| We can do it whenever you like. | 네가 원할 때 언제든지 오면 돼. |
| Umm, I guess it must be in zone-2... | 음, 구역 2일 거 같은데... |
| You can sit on the sofa and hold him on your lap. | 네가 소파에 앉고, 무릎 위에 잡고 있어봐. |
| We can use the queue that goes faster. | 더 빨리 줄어드는 줄에서 계산하면 되잖아. |