I know nothing concerning the lost letter.とは 意味・読み方・使い方

I know nothing concerning the lost letter.

The letter must have been lost in the post.

I forgot to answer the letter.

My letter remains unanswered.

I don't remember to post the letter.

I don't remember mailing the letter.

I have no time to write a letter.

I answered neither of the letters.

Don't bother to answer this note.

I am not writing a letter.

I've got no answer to my letter.

I won't reply to this letter.

I don't even know where to write to him.

I haven't got the time to answer these letters.

I didn't feel uneasy when I read the letter.

There are a lot of letters I have to read.

I don't know that the letter was read by another person.

I can't make any sense of this letter.

Our letters must have crossed in the mail.

I don't have time to read over that letter.

May I trouble you to post this letter for me?

Do you mind posting this letter for me?

Don't bother to answer this letter.

I've got no answer to my letter.

I haven't had a reply to my letter.

I have written to him, but I have not heard from him in reply.

She does not send the answer to what kind of letter.

She doesn't answer any kind of letter.

His letter doesn't make any sense.

The letter miscarried, for it was wrongly addressed.