He needs to go
He has to go
She does not need to go
she need not go
Need he go?
You must not watch television when you are eating
You may not smoke here
Must I leave here at once?
I was able to play the piano well last night
My father is going to leave for Beijing next week
I had to sell my car
I will have to make some money out of the stock market
I will be able to improve my English within 3 months
I may be able to find a girl in the party
I must be able to find a good girl to be my wife
