1.if you (come) earlier, you would have met him
2.if i had know that you were in hospital, i(to visit) you

Ответ:

If you had come earlier, you would have met him.

If I had known that you were in hospital, I would have visited you

Объяснение:

1. If you (had come) earlier, you would have met him.

2. If I had known that you were in hospital, I (would have visited) you.