Answer:A modal is a type of auxiliary (helping) verb that is used to express: ability, possibility, permission or obligation. Modal phrases (or semi-modals) are used to express the same things as modals, but are a combination of auxiliary verbs and the preposition to. The modals and semi-modals in English are:
Since Kenny had to catch Rufus up. Rufus thought that Kenny was his friend. Rufus didn't come to Kenny's house because Kenny laughed at the mean comment Larry Dunn said.
