あいつがそれをやった理由は分かってるんだ。の英語

I know why he did it.

I know why he did it.

Why might he have done that, I wonder?

I wonder why he did that.

Why did he do such a thing?

Why he did it is beyond my comprehension.

Why did he do that?

It's no good his trying to find the true reason.

It's no use for him to try to find out the real reason.

This is the reason for which he did it.

This is the reason why he did it.

What made him so angry then, I wonder?

He had a good reason for doing it.

There must be some reason for what he has done.

What possessed him to do such a thing?

And I'm sure I know what caused it.

What motivated him to do such a thing?

I cannot figure out why he has done that.

I can't understand why he did that.

I wonder why he has committed such a rash act.

He had a reason to dash like that.

What made him so angry then, I wonder?

I know why you were nice to everyone.

I cannot comprehend why he did such a thing.

Why do you think he said so?

I wonder why he said so.

What made him change his mind?

I wonder why he is so angry.

I can't figure out why he didn't tell the truth.

I don't understand why he didn't tell the truth.