YOU SAID:

he was the fact that he did not have a fat uncle

INTO JAPANESE

彼には太ったおじがいなかったという事実でした

BACK INTO ENGLISH

It was the fact that he didn't have a fat uncle

INTO JAPANESE

彼には太ったおじがいなかったのは事実だった

BACK INTO ENGLISH

It was true that he didn't have a fat uncle

INTO JAPANESE

彼には太ったおじがいなかったのは本当だった

BACK INTO ENGLISH

It was true that he didn't have a fat uncle