一般现在时:肯定I leave home for school at 7 every morning.
The earth moves around the sun.
Shanghai lies in the east of China.
He starts next week.
The train starts at 10 o'clock in the morning.
否定I don't want so much.
Don't give me that piece.
My husband doesn't like steak.
I don't like eating apples.
I don't have a cellphone.
疑问Where are you?
Are you a teacher?
Do you want to go swimming?
Are the boys in the library
Do you do your homework at home
现在进行时：肯定We are waiting for you.
Mr.Green is writing another novel.
She is learning piano under Mr.Smith.
I'm leaving for a trek in Nepal next week.
we're flying to Paris tomorrow.
否定Su Yang isn't singing.
Mr.Green isn't writing another novel.
We aren't making model planes these days.
They are not playing basketball now.
He isn't always causing trouble.
疑问How much is being spent a month by some students on their cellphones?
What are being produced by this company?
Who is being interviewed for the job by them?
What are being sent by George to his friend's phones?
Which are the programmes being developped for by them?
一般将来时:肯定The play is going to be produced next month.
Look at the dark clouds,there is going to be a storm.
We are to discuss the report next Saturday.
He is about to leave for Beijing.
The boy is to go to school tomorrow.
否定I won't come here tomorrow.
He will not be beaten by his mother even if he breaks the cup.
This letter will not be posted tomorrow.
A new hospital will not be built in a year.
In class you will not be allowed to leave .
疑问 What are you going to do tomorrow?
Will you be at home at seven this evening?
Are we to go on with this work?
Shall we go there at five?
Will you please open the door?