YOU SAID:

they did yeah and i think i figured out why

INTO JAPANESE

彼らははいや私はなぜ私が理解したと思う

BACK INTO ENGLISH

they yes I think I understood why

INTO JAPANESE

彼らははい、私はなぜ理解したと思う

BACK INTO ENGLISH

I think they understood why yes

INTO JAPANESE

私は彼らがなぜはい

BACK INTO ENGLISH

I know why they are yes

INTO JAPANESE

私は彼らがイエスである理由を知っている

BACK INTO ENGLISH

I know why they are yes