YOU SAID:

If you play soccer in the dark, you won't see your goals

INTO JAPANESE

暗闇でサッカーをしていると、目標が見えません

BACK INTO ENGLISH

I can't see my goal when playing soccer in the dark

INTO JAPANESE

暗闇でサッカーをするとき、目標が見えない

BACK INTO ENGLISH

I can't see my goal when playing soccer in the dark