Present Perfect Tense (Advanced Level)

Explanation of Present Perfect Tense in Urdu

Present Perfect Tense is used :-

1. To show actions completed in the immediate past (usually with JUST);
   He has just left for the airport.
   I have just finished my homework.
2. To show past actions whose time is not mentioned and definite;
   Have you read "Harry Potter"?
   I have seen Japan.
3. To define past events when we focus on their effect in the present than of the action itself;
   Aslam has eaten all of the cake. (There isn't any left for me)
   I have cut my finger. (and it is bleeding now)
   I have done my homework. (now I am free)
   
4. To show experiences of your life;
   I have been to K-2.
   I have jumped from an aeroplane.
   
5. Present Perfect Tense is also used To express a situation (not action) that began in the past and continues to the present and it usually comes with since or for ;
   
   (a) I have been here since seven o'clock.
   (b) We have been here for two weeks.
   (c) I have known him for many years.
   

Present Perfect Tense is never used with adverbs of past time.For Example; We must not say "He has gone to Karachi yesterday" in such case you had better use Simple Past Tense "He went to Karachi yesterday".