"reading/dancing" is the act of doing that thing and so it is a noun. "Read/dance" is the verb. However, "dance" can refer to the act itself and so can be a noun. However, "read" cannot be a noun. This is the quirk of the language! English is difficult because there are so many exceptions! "What I most like is TO READ" "What I most like is READING". "What I most love to do IS TO DANCE" "What I most love IS DANCING" -- This means you like the act of moving your body "What I most love IS DANCE" -- This means those movements of the body but you may not be doing it.

What I like most is to read. What I like to do most is read. OR What I like most is reading. The things I like to do most are reading and dancing. What I like to do most is.... or What I like to do the most is....

There's no clear rule here, but I generally say, What I most like to do is read. The things I most love to do are dancing and reading. "what I like to do MOST is.." or "what i MOST like to do is.." what I like to do mostly is... OR what I like to do the most is... what I most like to do is...

Hello Gabriel,how are you?I know good site,this site is name busy.con.Are you hear busuu.com?