YOU SAID:

Hello I'm 31 years old

INTO JAPANESE

こんにちは。31歳です。

BACK INTO ENGLISH

Hi, I'm 31 years old.

INTO JAPANESE

私は31歳だ

BACK INTO ENGLISH

I'm 31 years old.

INTO JAPANESE

私は31歳だ

BACK INTO ENGLISH

I'm 31 years old.