UNIT 4

UNIT 4

1. SOME IRREGULAR VERBS

   • Base Form freeze get give go
   • Past Simple froze got gave went
   • Past Participle frozen got given gone

2. PRESENT PERFECT

   • The present perfect is formed using has/have + past participle. Questions are indicated by inverting the subject and has/have. Negatives are made with not.
     • Statement: You have seen that movie many times. Question: Have you seen that movie many times? Negative: You have not seen that movie many times.
   • WITH FOR AND SINCE
     • "FOR" + PERIODO DE TIEMPO
       • She has lived here for twenty years. We have taught at this school for a long time.
     • "SINCE" + MOMENTO CONCRETO
       • She has lived here since 1980. We have taught at this school since 1965.
   • CONTRACTIONS
     • I have I've You have You've
     • He has She has It has John has The car has He's She's It's John's The car's