Question

If I (KNOW) that fact I (VISIT) you. (3) *

Answer 1

Ответ:

If I had known that fact, I would have visited you.

Объяснение:

In 3rd conditional the if clause is used with past perfect. The main clause is formed usind would + have/has + past participle

Answer 2

It seems like you're providing a sentence with placeholders. If I understand correctly, you're looking to fill in the placeholders "(KNOW)" and "(VISIT)" with appropriate words. Could you please provide more context or clarify your request?