YOU SAID:
I was tired of hearing that they did not know.
INTO JAPANESE
彼らが知らなかったと聞いてうんざりしていました。
BACK INTO ENGLISH
Tired of hearing they didn't know.
INTO JAPANESE
彼らは知らなかったのを聞いてうんざり。
BACK INTO ENGLISH
Tired of hearing they didn't know.
Come on, you can do better than that.