YOU SAID:

monkeys where ment to fly but they fell down and broke their eye

INTO JAPANESE

猿が飛ぶようになるが、彼らは落ちて目を壊した

BACK INTO ENGLISH

Monkeys will fly, but they fell and broke their eyes

INTO JAPANESE

サルは飛ぶが、落ちて目を壊した

BACK INTO ENGLISH

The monkey flies, but it fell and broke my eyes

INTO JAPANESE

サルは飛ぶが、落ちて目を壊した

BACK INTO ENGLISH

The monkey flies, but it fell and broke my eyes