YOU SAID:

And if one brown teddy should accidentally fall, there'd be two brown teddies sitting on a wall.

INTO JAPANESE

ブラウンのテディが1つ落ちたら壁には2つのブラウンのテディが座っています

BACK INTO ENGLISH

When one of the brown teddies falls, there are two brown teddies sitting on the wall.

INTO JAPANESE

茶色いテディの1つが落ちると、壁には2つの茶色いテディが座っています。

BACK INTO ENGLISH

When one of the brown teddies falls, there are two brown teddies sitting on the wall.