I
would have hyposensitized
you
would have hyposensitized
he / she / it
would have hyposensitized
we
would have hyposensitized
you
would have hyposensitized
they
would have hyposensitized
I
would have been hyposensitizing
you
would have been hyposensitizing
he / she / it
would have been hyposensitizing
we
would have been hyposensitizing
you
would have been hyposensitizing
they
would have been hyposensitizing