Did you know how to swim when you were 4 years old?
Were you able to swim/Could you swim when you were 4 years old?
You cannot smoke, it's forbidden.
You mustn't smoke in the underground.
You ... stay at home
should/must
Laws don't allow young people to drive before they are 18. (Young people...)
Young people mustn't/can't drive before they are 18.
You are required to respect the national flag.
You should/must/have to respect the national flag
You ... wear a mask
Must/Should
You ... buy too much toilet paper (Negative)
shouldn't
It isn't obligatory to knock before entering. (You...)
You don't need to/ knock before entering.
Perhaps we will win the lottery.
We might win the lottery.
There is a tiny opportunity for her to get the job.
(She...) She might get the job.
You ... study online have to
Have
You are prohibited from entering this place.
You mustn't enter this place.
It is forbidden to play any loud music after 12 at night. (You..)
You mustn't play any loud music after 12 at night.
You ... touch your face
mustn't
Tatiana was able to read when she was three. (She..)
She could read when she was three.
It is not necessary for you to wait longer. (You...)
You don't have to/don't need to/needn't wait longer.
I don't let my son stay out after 11. (My son...)
My son is not allowed/ mustn't/can't stay out after 11.
You ... wash hands
must
I am able to speak English.
I can speak English
It is essential that we talk before the meeting starts.
We must talk before the meeting starts.
It's absolutely necessary that we finish the article today.
(We...) We must finish the article today.
Perhaps Camila is in the park now.
Camila may/might/could be in the park now.
It's necessary to wear a uniform to work in this company. (You...)
You have to/must wear a uniform to work in this company.
You ... panic
shouldn't
Melina wasn able to drive as a kid.
She could drive as a kid.
You can't be late for work.
You mustn't be late for work.
It is good for us to exercise more.
(We...) We should exercise more.
You are allowed to go home.
You can go home
You ... do your homework
have to