YOU SAID:

an da oter one braked him arm cause he not knoledg

INTO JAPANESE

彼は彼の腕にブレーキをかけたので、彼は知らなかった

BACK INTO ENGLISH

He did not know because he braked his arm

INTO JAPANESE

彼は腕にブレーキをかけたので、彼は知りませんでした

BACK INTO ENGLISH

He did not know because he braked his arm