YOU SAID:
I thought that I clarified my claim yesterday
INTO JAPANESE
昨日自分の主張を明確にしたと思いました
BACK INTO ENGLISH
I thought yesterday I clarified my claim
INTO JAPANESE
昨日、自分の主張を明確にしたと思った
BACK INTO ENGLISH
I thought yesterday I clarified my claim
You've done this before, haven't you.