YOU SAID:

you have ants in your pants

INTO JAPANESE

パンツの中にアリがいるよ

BACK INTO ENGLISH

There's an ant in my pants

INTO JAPANESE

パンツの中にアリがいる

BACK INTO ENGLISH

there are ants in my pants

INTO JAPANESE

パンツの中にアリがいる

BACK INTO ENGLISH

there are ants in my pants