I
would have weatherproofed
you
would have weatherproofed
he / she / it
would have weatherproofed
we
would have weatherproofed
you
would have weatherproofed
they
would have weatherproofed
I
would have been weatherproofing
you
would have been weatherproofing
he / she / it
would have been weatherproofing
we
would have been weatherproofing
you
would have been weatherproofing
they
would have been weatherproofing