YOU SAID:

i pooped my pant in school and peed my self

INTO JAPANESE

私は私のズボンを学校でうんちして、自分の体を排尿しました

BACK INTO ENGLISH

I pooped my pants at school and urinated my body

INTO JAPANESE

学校でズボンを脱いで排尿しました

BACK INTO ENGLISH

I took off my pants at school and urinated

INTO JAPANESE

学校でズボンを脱いで排尿した

BACK INTO ENGLISH

I took off my pants at school and urinated