YOU SAID:

i ate three knees from my mother's child

INTO JAPANESE

母の子の膝を3つ食べた

BACK INTO ENGLISH

I ate three of my mother's child's knees

INTO JAPANESE

母の子のひざを3つ食べました

BACK INTO ENGLISH

I ate three knees of the mother's child

INTO JAPANESE

母子の膝3つ食べた

BACK INTO ENGLISH

I ate three mother and child knees

INTO JAPANESE

母子膝3つ食べました

BACK INTO ENGLISH

I ate 3 maternal and child knees

INTO JAPANESE

母子膝3つ食べました

BACK INTO ENGLISH

I ate 3 maternal and child knees