Tenses: Present Perfect

In this blog, we are going to discuss about Present Perfect Tense in detail.


c) Present Perfect Tense:

                         This tense can be used when an activity or a task has been completed a little while ago. It can be a past, but has a relation with the present. If you are still confusing with this explanation, look at the following formula and examples:

 Formula: Subject + have/has + v3 + object

Ex: 1) I have completed my task just now.

  explanation:
In the above sentence, 'I' is a subject, 'have' is an auxiliary verb (defined in the formula), 'completed' is v3 and 'my task' is the object.

    It means that the task is done by me just before.

   We can write the present perfect tenses by using some keywords like just now, just before, already, yet and so on.

      2) I have not yet done this task. (in a negative sentence)
   
      We can also use present perfect tense when an activity is never happened before. Like..

       3) I have never seen you before. (I never saw you before)

       4) Mahesh Babu has never acted in an English film.

When to use have and when to use has?
        You can find answer for this question in one of my previous blogs: Differences between Have and Has.

How to make questions with present perfect tenses?

      It is very easy to make a present perfect sentence into a question. Let me take an example and convert into a question in different ways:

   Ex: 1) She has gone to market just now.

       Question: Has she gone to market? (yes or no)
                       Where has she gone? (to market)

         2) I have seen an accident just before.
 
       Question: Have I seen an accident just before? (yes or no)
                        What have I seen just before? (accident)

         3) Rama has just killed Ravana.

         Question: Has Rama killed Ravana? (yes or no)
                          Whom has Rama killed? (Ravana)
                          Who has killed Ravana? (Rama)

          4) Train has already left the station.

         Question: Has train already left the station? (yes or no)
                          What has train left? (station)

           5) Nisha has not attended the party yet.

          Question: Has Nisha not attended the party yet? (yes or no)
                           Hasn't(has not) Nisha attended the party yet? (yes or no)

So, these are the ways of making questions out of present perfect tenses. If you want to learn more, you can ask your doubts in comments section.