If he had known about the meeting, he would have attended.

Translation language

Sentence

Narrator

You should always check your schedule to avoid missing important meetings.

I always check my calendar to ensure I don't miss any meetings.

Did you know about the meeting beforehand?

If I had known earlier, I would have been there.

Had he been aware of the meeting, he would have been in attendance.

If he'd known, he would have gone.

He would have gone if he knew.

Past perfect tense indicating prior knowledge.

Past conditional expressing a hypothetical action.