YOU SAID:
that'll happen when pigs fly
INTO JAPANESE
豚が飛ぶときに起こるだろう
BACK INTO ENGLISH
It will happen when pigs fly
INTO JAPANESE
豚が飛ぶときに起こります
BACK INTO ENGLISH
It happens when pigs fly
INTO JAPANESE
豚が飛ぶときに起こる
BACK INTO ENGLISH
It happens when pigs fly
You've done this before, haven't you.