YOU SAID:

i went to my sons room sure enough there was

INTO JAPANESE

息子の部屋に行ったのは確かだった

BACK INTO ENGLISH

I was certain I went to my son's room

INTO JAPANESE

私は息子の部屋に行ったと確信していました

BACK INTO ENGLISH

I was sure I went to my son's room

INTO JAPANESE

私は息子の部屋に行ったと確信していました

BACK INTO ENGLISH

I was sure I went to my son's room