Grammar-Sentence elements and structures My teeth hurt. →S(subject)V(verb) The subject(主语)is The verb(动词)expresses the person or the thing the action. that does the action. Subject+Verb (SV)Grammar—Sentence elements and structures My teeth hurt. S (subject) V (verb) The verb(动词) expresses the action. Subject + Verb (SV) The subject(主语) is the person or the thing that does the action