A clauseA group of related words containing a subject and a verb. that could be a sentence in itself. E.g.: I wouldn’t go there if I were you. ("I wouldn't go there") When I arrived he was surfing. ("he was surfing")

A verbA part of speech that expresses an action or a state. E.g.: John seldom plays tennis. that can express an actionA general term expressing that somebody or something does something or stateA condition that exists at a particular time. E.g.: I am sick. This melon weighs two kilos. in itself. E.g.: John likes squash a lot. ("like")