Modals 12

I mustn't submit my assignment today.

My assignment was required to submit by today.

I needn't have submitted my assignment today.

My assignment must have been submitted today. 

We should leave for the disco now.  

We may leave for the disco now.   

We needn't leave for the disco now.

We must have left for the disco now.

Your passport must be lost.

You needn't have brought your passport.  

There must be a mistake in your passport.

You shouldn't have lost your passport.  

My car keys might be in the kitchen.

I don’t know whether my car keys are in the kitchen.  

My car keys cannot be in the kitchen.

My car keys should be put in the kitchen.   

Will I come to your house at about 7pm?

Can I come to your house at about 7pm?  

Could I be coming to your house at about 7pm?

Must I come over to your house at about 7pm?  

Helmets must be worn at all times when you are riding a motorcycle

You needn’t wear a helmet whenever you are riding a motorcycle

When you are riding a motorcycle, wearing a helmet is not a must.

If you are riding a motorcycle, you needn’t wear a helmet.

Must you tell me the way to get to the station near here?

Could you tell me what to get to the station near here?

Could you tell me how to get to the station near here?

Would you tell me where to get to the station near here?   

He must have studied very hard  

He was too lazy to succeed  

He needs studying harder

He can't have studied very hard

I used to getting up early in the morning.

I used to get up early in the morning 

I’m used to get up early in the morning.

I’m used to getting up early in the morning    

The carpet has not been cleaned.  

The carpet has cleaned.

The carpet hasn’t cleaned yet.

The carpet has been cleaned.