You mustn’t vs. You don’t have to

You have to arrive on time

You must arrive on time.

= It’s necessary that you arrive on time

You don’t have to arrive early.

You must not (mustn’t) arrive late

= It’s not necessary that you arrive early.

= It’s necessary that you not arrive late.

Example:

You must be quiet in the library.

___You mustn’t talk …

___You don’t have to talk …

1. You must drive under the speed limit.

___You mustn’t drive over…

___You don’t have to drive over…

2. The report isn’t due until tomorrow.

___It mustn’t be finished…

___It doesn’t have to be finished…

3. We have to stay within out budget.

___We mustn’t exceed…

___We don’t have to exceed…

4. Customers may pay by check.

___They mustn’t pay cash.

___They don’t have to pay cash.

5. All drivers are required to have car insurance.

___You mustn’t drive without …

___You don’t have to drive without…

6. The director insisted that I come to work tomorrow.

___I mustn’t stay home…

___I don’t have to stay home…

7. It’s not important that these letters by typed.

___These letters mustn’t …

___These letters don’t have to…

8. Payment can be made when the merchandise is delivered.

___You mustn’t pay in advance.

___You don’t have to pay in advance.

WILL

WOULD

Future:

It’s ten o’clock. The meeting will begin in an hour.

It was ten o’clock. The meeting would begin in an hour.

Reported speech:

They say the meeting will begin in an hour.

They said the meeting would begin in an hour.

Condi-tionals:

If I make the 8:00 train, I’ll get there on time

If I were to make the 8:00 train, I would get there on time.

Requests:

Will you please repeat the question?

Would you please repeat the question?

Other:

________

I would (I'd) rather take the early train, if possible.

I'd like some advice in this matter.

I'd rather have the package delivered.

____ I prefer to …

____ I was going to …

"Will you be at the meeting?"

____ He asked me to be at the meeting.

____ He asked (me) whether I would be at meeting.

Would you please turn up the radio?

____ I'd like you to …

____ Are you going to …?

He said he would be back before noon.

____ He said he preferred to be back by noon.

____ He said, "I'll be back before noon."

You won't be able to vote in the next election if you don't register now.

____ You wouldn't be able to …

____ You can't …