YOU SAID:

when the pant too much space is big

INTO JAPANESE

パンツが大きすぎるとき

BACK INTO ENGLISH

When your pants are too big

INTO JAPANESE

ズボンが大きすぎるとき

BACK INTO ENGLISH

When trousers are too big

INTO JAPANESE

ズボンが大きすぎるとき

BACK INTO ENGLISH

When trousers are too big