YOU SAID:

Anyone could have done what he did, had he done it.

INTO JAPANESE

誰もができた彼が何彼はそれを行っていた。

BACK INTO ENGLISH

No one else could he what he had done it.

INTO JAPANESE

誰もは彼に彼がそれを行っていた可能性があります。

BACK INTO ENGLISH

No one is may be to him that he had done it.

INTO JAPANESE

誰も彼と話をしなかった

BACK INTO ENGLISH

No one is to talk to him.

INTO JAPANESE

誰も彼と話をしなかった

BACK INTO ENGLISH

No one is to talk to him.