Answers

2014-01-03T17:31:11+05:30
Present perfect tense
    present perfect tense is connection past with present. any activity starts with past and continue present too.that situation we should use present perfect tense
 Example
   I have seen movie
  i have done
  i have found
He has mistaked

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when an action begins at some time in the past and has been completed NOW.
  • van
  • Ambitious
2014-01-04T14:34:35+05:30
When an action begins at some time in the past and when we are only concerned about that whether it has been perfected/completed by NOW we use present perfect tense.
we are not concerned about when it started. we only need to know the present status.
STRUCTURE: subject + have/has + V3
EXAMPLE: I have completed my work. (we don't know when it started but we knoe that it is complete right now.)
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