YOU SAID:

Good weather, is not it?

INTO JAPANESE

天気の良い日は、それではないですか。

BACK INTO ENGLISH

Is not it is a good day.

INTO JAPANESE

それは良い日はありません。

BACK INTO ENGLISH

It is a good day.

INTO JAPANESE

良い日です。

BACK INTO ENGLISH

This is a good day.

INTO JAPANESE

これは良い日です。

BACK INTO ENGLISH

This is a good day.