英和和英

be unable

the state of a task of being impossible

That is not to be done―impossible―impracticable.

To do my utmost, I can not do it

He is not much of a scholar―not much of a one.

possibility of matter (be impossible, be an impossibility)

not capable of being obtained

He is nothing of a scholar―no scholar （at all）.

not able to be ascertained

I can't do it yet.

Things I will never achieve

Can't do it

the impossible

I can't ask for money so often.

He is good for nothing.

an inability to stay awake

an improbable event

Nothing is impossible.

A man who is determined to do anything, can do it

not to be able to accomplish

I couldn't even guess.

the feeling of being impatient

I can't do anything.

I wouldn't dare.

I can't reply to you immediately.

It is impossible that he can not do it.

incapable of being reversed

possible but not necessary

made impossible

technologically impossible