[thadajirajaras]

Impossible situations
Using "If-clause" and "wish"
Impossible situations in present : present sim-->past simple, present perfect--> past perfect
Impossible situations in past : past sim-->past perfect

How about another types of sentences?

For example:

1)[one impossible situation - one fact]
Eventhough You [are/were] the superman, you can't help me from the death.

2)[a second impossible situation - a second Impossible situation]
Eventhough You [have/had] a strong body, you [don't/didn't] have a strong mind.