I can't make out why he is so much troubled.とは 意味・読み方・使い方

I can't make out why he is so much troubled.

I don't see why he is so angry.

I cannot understand why his attitude changes so suddenly.

However hard I try, I can never catch up with him.

No matter how hard I try, I will never be able to catch up with him.

I am at a loss to comprehend the reason why he should be offended.

I don't understand why he would take such a risk.

I can't understand why he would take such a risk.

I can't understand why you are so critical of him.

I don't know what made her so sad.

How he manages to keep alive, is more than I can tell.

I completely do not understand why that turned out this way.

I can't figure out why he said so.

I don't know understand why he said that.

I cannot conceive how he made this mistake.

I have no idea why she got so angry.

I can't understand why he did such a thing.

Why he got angry is quite clear.

I cannot figure out why he has done that.

I can't understand why he did that.

I don't know why I get yelled at by him.

I didn't understand why he was hated.

You are mistaken as to what makes him so nervous.

His reason for not going is still unclear.

There was no telling why he had gotten so angry.

I can't understand his obsession with baseball.

I don't see how he can live with himself.

I don't know why my mother seems this sad.

I don't know why he thinks that about me.

The Americans themselves cannot understand how they have got into the present situation [how things have reached this pass].