YOU SAID:

my knee hurts because I fell from my bike

INTO JAPANESE

私は私の自転車から落ちたので私の膝が痛い

BACK INTO ENGLISH

My knee hurts because I fell off my bike

INTO JAPANESE

自転車から落ちたので膝が痛い

BACK INTO ENGLISH

My knee hurts because I fell off the bicycle

INTO JAPANESE

自転車から落ちたので膝が痛い

BACK INTO ENGLISH

My knee hurts because I fell off the bicycle