YOU SAID:

They say it don't be like it is, but it do.

INTO JAPANESE

彼らは言うそれはいけないが、それを行うようです。

BACK INTO ENGLISH

They don't say it, but seems to do it.

INTO JAPANESE

彼らはそれを言うことはありませんが、それを行うと思われます。

BACK INTO ENGLISH

Would do it, but they say it is.

INTO JAPANESE

それを行うと、彼らは言います。

BACK INTO ENGLISH

To do it, they say.

INTO JAPANESE

それを行うには、彼らは言います。

BACK INTO ENGLISH

To do it, they say.