Present Perfect

has/have + participial verb
UPDATED:  SEPT 2021
A MUST LEARN GRAMMAR
This tense is not frequently used in some languages, which makes it difficult for International learners of English to understand how to use it correctly. 
TIME:
​
  • Action in the past, action now and continues. 
 
  • He has lived in Panama since 2000.    ​

    He lived in Panama in the past.
    He lives in Panama now.
    And he (still) continues to live in Panama.
    ​
  • His situation hasn't changed.
EXAMPLES:  
  1. Roger has lived in New York City since 2001.

  2. The stock market has been doing well recently.

  3. Bill has visited Paris many times.

  4. Roger has been in his new job for a year.
    ​
  5. How long have you worked for Ford?​
COMMON QUESTIONS USING PRESENT PERFECT:

  1. How long have you been waiting?   
    It's been over an hour!

  2. How long have you been a professor at the university?
    For 10 years.

  3. How many times have you been to Las Vegas?
    Eight.

  4. Have you ever been to Paris?
    Yes, twice.

  5. Has the meeting started yet?
    No, it hasn't.

  6. Have you finished your homework yet?
    Yes, I finished it an hour ago.

  7. What cities have you visited this year?
    None!  The virus stopped me from traveling
NOTE:  Other tenses
  • PAST TENSE:     I conducted interviews all day yesterday. 

  • PRESENT TENSE:   I conduct interviews every day.

  • FUTURE TENSE:   I will conduct interviews all day tomorrow.  

  • PRESENT PERFECT:  I have conducted interviews since Monday.  

  • PRESENT PERFECT:  Have you ever + verb?

  • PAST PERFECT:   I had conducted interviews all day when I began to feel bad.