YOU SAID:

Please do not walk on grass

INTO JAPANESE

ください、草を歩いてはいけない

BACK INTO ENGLISH

Please, don't walk grass

INTO JAPANESE

草を歩かないでください、

BACK INTO ENGLISH

Please, don't walk in grass

INTO JAPANESE

草で歩かないでください、

BACK INTO ENGLISH

Please, don't walk on the grass

INTO JAPANESE

芝生の上を歩かないでください、

BACK INTO ENGLISH

Please, don't walk on the grass