YOU SAID:

forget i said anything at all

INTO JAPANESE

私は全く何かを言ったことを忘れて

BACK INTO ENGLISH

I forgot to say something at all

INTO JAPANESE

私は何かを言うのを全く忘れた

BACK INTO ENGLISH

I totally forgot to say something.

INTO JAPANESE

私は何かを言うのを完全に忘れていました。

BACK INTO ENGLISH

I completely forgot to say something.

INTO JAPANESE

私は何かを言うのを完全に忘れていました。

BACK INTO ENGLISH

I completely forgot to say something.