英和和英

It can't be!

That can't be! Seriously?

To do my utmost, I can not do it

I can not do it for the life of me

I can not do it to save my life.

What? I can't believe it!

Obviously not!

intolerable

Can't take it

Can't do it

certain, sure

must not

not asked for

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

I think it is unlikely.

No, I can't.

not capable of being obtained

absolutely impossible―a sheer impossibility

Not freaking possible.

That's not possible.

No way!

I can't believe it!

This is impossible.

I can't believe this is happening.

This is horrible.

Unbelievable!

That's impossible.

That wouldn't happen.

That can't be true.

It's very unlikely.

Can't do it

not capable of being obtained

To do my utmost, I can not do it

It can't be!

a remote possibility

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

Fail to become...

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

totally unlikely

not to be able to accomplish

the state of being disappointing

It can not but be so.

to be unable to endure

not capable of being retracted

Haven't done it

not able to be found

uncertainty

Since it is done, it can not be undone.

of something, to be unlikely to be true or to happen

incapable of being passed

to be unable to speak

something that is trivial or unworthy of attention

to take pity on―feel pity for―one

the condition of being untidy

incapable of solution

to be worried that a certain thing is not accomplished

the degree to which something is not feasible

to regard something as too good for oneself

not able to be ascertained

not certain; doubtful