YOU SAID:

He ran away and peed in his pants.

INTO JAPANESE

彼は逃げ出してズボンを覗いた。

BACK INTO ENGLISH

He ran away and laid on his pants.

INTO JAPANESE

彼は逃げ出してズボンをかぶった。

BACK INTO ENGLISH

He ran away and put on his pants.

INTO JAPANESE

彼は逃げ出してズボンをはいた。

BACK INTO ENGLISH

He ran away and put on his pants.