PRESENT PERFECT

PRESENT PERFECT

1. Grammatical Rules

   • FORM
     • auxiliar verb
       • "have or has"
         • pronoun: I, you, we, they: have
         • pronoun: she, he, it: has
     • verb
       • in past participle
   • STRUCTURE
     • affirmative sentences
       • pronoun + auxiliar verb (have/has) + past participle…
         • I have (I’ve) talked to Peter
     • negative sentences
       • pronoun + auxiliar verb + "not" + verb in past participle...
         • She has not (hasn’t) gone to work
     • interrogative sentences
       • auxiliar verb + pronoun + verb in past participle...?
         • Have you been to London?

2. Uses

   • to describe an experience
     • I have never flown in a plane
   • for a change in time
     • I have become more timid in my old age
   • for successes or achievements
     • Our football team has won the championship three times
   • for actions that are expected to happen
     • note: "yet", "still"
       • You haven’t finished your homework yet?