YOU SAID:

I ran as fast I could away from the small green blob that lay on my window sill

INTO JAPANESE

私は窓枠に横たわっている小さな緑の塊からできるだけ速く走りました

BACK INTO ENGLISH

I ran as fast as possible from a small green mass lying on the window sill

INTO JAPANESE

私は窓枠に横たわっている小さな緑色の塊からできるだけ速く走った

BACK INTO ENGLISH

I ran as fast as possible from a small green mass lying on the window sill