誰がこれをしたのかはわからない。の英語

There is no telling who did this.

I don't know who made that.

I don't know who that is talking about.

I forget who said it.

I forgot who said that.

I don't know when and who did this.

You must not discuss this matter with anyone.

I don't know who should perform that.

Goodness knows what it was.

Nobody has ever done that.

I don't know who wrote that book.

No one wanted to talk about it.

Nobody wanted to talk about it.

No one knows how to do that.

I don't know who he is.

I don't know what kind of person that person is.

No one called my attention to it.

No one tells me about that.

Nobody can understand it.

I don't know how many people joined the party.

I don't know for certain who he is.

Nobody had ever heard of it.

No one can tell.

No one knows.

No one has ever been able to do it.

Nobody thinks anything like that.

Nobody wants to talk about that.

I haven't spoken about this to anyone.

Nobody remembers that it exists.

I don't know who that boy is.