英和和英

be used by

used up

to be in use

being used to

to be used as a blind―be make a stalking-horse of

be of use

to be used up

put to use

used as expletives

Use it as...

come into use

to be used for a certain purpose

to take care―be careful

to take care of―be careful of―give attention to―anything

During use

put to use

become used up

come [be brought] into use

being for someone's use

to be out of use

I have some business to attend to

I have something to do

I am engaged.

I have finished my business

I am through with my business

I am quit of the business.

to use something according to the rules

be in common use

to use much of

to use something