YOU SAID:

the grass is brown when it is on fire

INTO JAPANESE

それが燃えている場合、草は茶色

BACK INTO ENGLISH

If it's burning grass is brown.

INTO JAPANESE

それが燃えている場合、草は茶色です。

BACK INTO ENGLISH

If it is on fire, the grass is brown.

INTO JAPANESE

火災の場合、草は茶色です。

BACK INTO ENGLISH

Fire if the grass is brown.

INTO JAPANESE

草が茶色の場合は火。

BACK INTO ENGLISH

Grass is Brown's fire.

INTO JAPANESE

草はブラウンの火です。

BACK INTO ENGLISH

Grass is Brown's fire.