Present Perfect Simple

Present Perfect Simple

1. Form

   • Affirmative
     • I YOU WE THEY
       • Have workend have written
     • HE SHE IT
       • Has worked has written
   • Interrogative
     • Have I/you/we/they worked? Have I/ you/we/they written? Has he/she/it worked? Has he/she/it written?
   • Negative
     • I/you/we/they haven´t worked I/you/we/they haven´t written He/she/it hasn´t worked He/she/it hasn´t written

2. Uses

   • For an action that happened in the past but whose results are obvious in the PRESENT
   • For an action that has JUST finished
   • For an action that started in the past and hasn´t finished
   • For experiences we have/haven´t lived
   • For an action that happened in unspecified time

3. Time expressions

   • ALREADY/YET
     • I have already got dressed
   • HAVE GONE TO/ HAVE BEEN TO
     • Mary has gone to London Imiss her so much