His is a possessive pronoun and, as such, does not have a comparative form.
His doesn't have a comparative. None of the possessive have comparatives.
There is no comparative of get.
comparative
What is the comparative of first
comparative
comparative
what is comparative silhouetting
comparative
The comparative is greater and the superlative is greatest.
comparative
high is a comparative
comparative of united
The comparative is "more genuinely."