英和和英

We decided.

I made my decision.

That is decided.

to be decided according to something

It's a go.

Decided on this

That's as clear as day.

a premature decision

I decided.

I already decided.

Have you decided?

to decide definitely

That is probably finalized, right?

That has already been decided.

It is irrevocably fixed―a settled affair―a done thing.

an affirmative decision

an idea which has been decided upon

That has already been decided.

The matter was decided after due deliberation.

My successor has been fixed upon.

make a decision

a probated will

X was chosen.

I can not decide―come to a decision―arrive at a decision.

make a decision

Well, have you decided?

the time that constitutes the moment when something is determined

acquiesce in a decision

Have you arrived at [come to] any decision?

It has been temporarily arranged―provisionally arranged―to do so.