9. Present, past and futute I am You /we /they are He /she /it is I / he / she / it was You /we /they were I You /we /they will be He /she /it There is There are There was There were There will be I /you /we /they write He / she / it write s I You wrote He We liv ed They I You He will write We They
10. Structure of Modal Verbs I Modal Verb (can /should, etc.) Infinitive (without TO) You He She It We They