YOU SAID:

my dad is a great dad

INTO JAPANESE

私の父は素晴らしい父親です。

BACK INTO ENGLISH

My father is a great father.

INTO JAPANESE

私の父は偉大な父です。

BACK INTO ENGLISH

My father was a great father.

INTO JAPANESE

私の父は、偉大な父だった。

BACK INTO ENGLISH

My father was a great father.