YOU SAID:

He don't think it be like that, but they do.

INTO JAPANESE

彼はそうは思わないが、彼らはそうだ。

BACK INTO ENGLISH

He doesn't think so, but they do.

INTO JAPANESE

彼はそうは思わないが、彼らはそう思う。

BACK INTO ENGLISH

He doesn't think so, but they do.