very much = a lot too much = more than enough so much = a lot (but informal) so much is also used in a sentence like this one (here others cannot be used instead) I like chatting so much that I often lose track of time. ... so much that ...

Here's another explanation "Very" emphasizes the concept expressed with an adjective. Thank you very much for your lovely gift. "Too " expresses excess. This coat costs too much . Maybe my older sister can buy it. for me? "So" means to an extent or degree as expressed; He ate so much that he could hardly stand up