YOU SAID:

your mom is even dumber than a sponge

INTO JAPANESE

あなたのお母さんはスポンジよりも馬鹿だ

BACK INTO ENGLISH

Your mother is stupid than a sponge.

INTO JAPANESE

あなたの母親はスポンジよりも馬鹿だ。

BACK INTO ENGLISH

Your mother is stupid than a sponge.