Ответ:

more friendly, the most friendly;

earlier, the earliest;

funnier, the funniest;

more polite, the most polite;

later, the latest;

more slowly, the most slowly;

more stupid, the most stupid;

more narrow, the most narrow;

futher, the futhest;

more shallow, the most shallow;

taller, the tallest;

less, the least.