Translation of "있었거든요" in English

아내가 모르는 게 있었거든요.

and I knew something that she didn't.

모두가 휴대전화를 내려다 보고 있었거든요.

because they were all looking down at their cell phone.

하지만 두번째로, 제가 그 상황에 있었거든요.

But second, it's because I've actually been there.

제 친구들 중 아버지가 없는 친구들이 있었거든요.

because I had friends that didn't have fathers.

사실 이해 안 가는 것들이 몇 가지 있었거든요.

there are several things, actually, which don't add up.