i couldn't have been betterとは 意味・読み方・使い方

I couldn't be better.

it could not be worse if

I couldn't say it better myself.

not too much better

It could have been better.

I got quite better.

Nothing could be better.＝Things couldn't be better.

I could have done better than he.

I got better.

I got better.

I have gotten better.

I got a lot better.

I already got better.

I have gotten quite better.

It was better than I expected.

better by far

I apologize that I cannot quite improve that.

I am sure there was a better one.

it might be unpleasant, though

I couldn't do anything more than that.

Haven't you a better one?

There's not much I can do about that.

I just can't take it anymore

I cannot possibly do it.

It's beyond me.

I could not adequately secure that.

I wasn't able to understand that right away.

There is a high possibility that I won't do anything.

It's just more than I can handle.

yesterday's solutions are not good enough