YOU SAID:

The silver trophy wouldn't fit in the brown suitcase because it was too big.

INTO JAPANESE

銀のトロフィーは大きすぎたので茶色のスーツケースには収まりませんでした。

BACK INTO ENGLISH

The silver trophy was too big to fit in my brown suitcase.

INTO JAPANESE

銀のトロフィーは大きすぎて私の茶色のスーツケースには収まりませんでした。

BACK INTO ENGLISH

The silver trophy was too big to fit in my brown suitcase.