YOU SAID:

I Hope my girlfriend took her umbrella

INTO JAPANESE

ガールフレンドが傘を持っていってくれたらいいなと思います。

BACK INTO ENGLISH

I wish my girlfriend would take an umbrella with him.

INTO JAPANESE

私のガールフレンドが彼と一緒に傘を持って行けばいいのに。

BACK INTO ENGLISH

I wish my girlfriend would take an umbrella with him.