YOU SAID:

My uncle thinks he's invisible

INTO JAPANESE

私の叔父は彼が目に見えないと思っています

BACK INTO ENGLISH

My uncle thinks he is invisible

INTO JAPANESE

私の叔父は彼が見えないと思います

BACK INTO ENGLISH

My uncle thinks he can not see

INTO JAPANESE

私の叔父は彼が見ることができないと思います

BACK INTO ENGLISH

My uncle thinks he can not see