PARAPHRASE: Parking here is prohibited. - NOT
You must not park here.
PARAPHRASE: It is not necessary for you to fill in the form. - TO
You don't have/need to fill in the form.
PARAPHRASE: At this school, it is compulsory for students to wear uniforms. - TO
At this school, students have to wear uniforms.
PARAPHRASE: It's possible that she is ill, but I'm not sure. - BE
She might/may be ill, but I'm not sure.
PARAPHRASE: It is advisable for them to wear gloves. -
They should wear gloves.
PARAPHRASE: It is forbidden for workers to use mobile phones in working hours. -
Workers mustn't use mobile phones in working hours.
PARAPHRASE: It is your duty to be in the classroom on time. - TO
You have to be in the classroom on time.
PARAPHRASE: Do you want the door closed? - CLOSE
Shall I close the door?
PARAPHRASE: Do you mind helping me open the window? -
Could / Can you help me open the window?
PARAPHRASE: It isn’t necessary for you to take a jacket. - NEEDN'T
You needn't take a jacket.
PARAPHRASE: She had permission to go to the party. - GO
She can go to the party.
PARAPHRASE: It is not advisable to reuse the same mask. -
You shouldn't use the same mask more than once.
PARAPHRASE: It isn't necessary that you come tomorrow. -
You needn't /don'thave to come tomorrow.
PARAPHRASE: I would recommend you do exercise every day. -
You should do exercise every day.
PARAPHRASE: What would you advise me to do? - THINK
What do you think I should do?
PARAPHRASE: Do I need to register before I get in? - HAVE
Do I have to register before I get in?
