I should smoke less.

I should do more 
exercise

You should see a 
specialist.

You should do your 
homework.

People should plant 
more trees.

Do you think we should 
wait?

They should arrive soon.

You shouldn't copy your 
friend's homework.

You shouldn't watch TV 
so much.

She shouldn't work so 
hard.

You shouldn't spend all 
your money at once.

I shouldn't be telling you 
all this.

They shouldn't sign the 
document.

Don't touch that! Why 
shouldn't I?

Should I phone her?

What should he do to 
make her happy?

What should we wear to 
the party?

What should the 
government do?

Why should she believe 
you?

How long should the 
essay be?

Why should they learn 
all of it?