YOU SAID:

Chomsky was only relying on the sentences having never been spoken before

INTO JAPANESE

チョムスキーは、これまで話されたことがない文章にのみ依存していた

BACK INTO ENGLISH

Chomsky relied only on sentences that had never been spoken

INTO JAPANESE

チョムスキーは一度も話されたことのない文章にのみ依存していた

BACK INTO ENGLISH

Chomsky relied only on sentences that had never been spoken