YOU SAID:

Hello grandpa and big brother nice to meet you

INTO JAPANESE

こんにちはおじいちゃんとお兄ちゃんはあなたに会えてうれしいです

BACK INTO ENGLISH

Hi Grandpa and brother are happy to see you.

INTO JAPANESE

こんにちはおじいちゃんと弟はあなたに会えてうれしいです。

BACK INTO ENGLISH

Hi Grandpa and brother are happy to see you.