Saying it's not doesn't change the fact that they are so.

Which doesn't change the fact that it does to me.

Understanding how and why they worked didn't change the fact of them.

But that doesn't change the fact the quality was poor.

This does not change the fact that they were wrong to have thought so.

But these facts do not change the fact that we are at war.

Doesn't change the fact that the situation I described can, and does, happen.

Which didn't change the fact that he did need the information the woman had found for him.

Nothing can change the fact that the attack cannot be turned away.

Yet, nothing changed the fact that we were not happy together.