YOU SAID:

we went out, so yeah.

INTO JAPANESE

私たちは出かけたので、そうです。

BACK INTO ENGLISH

That's right because we went out.

INTO JAPANESE

私たちが出かけたのでそうです。

BACK INTO ENGLISH

That's because we went out.

INTO JAPANESE

それは私たちが出かけたからです。

BACK INTO ENGLISH

That's because we went out.