Present Perfect – auxiliary HAVE / HAS
The Present Perfect tense is used to describe an action that already happened (in the past without an exact time) and sometimes the result of this action can change in the future. Different from the Simple Past which happens and finishes in a definite time in the past. To conjugate the Present Perfect Tense, we follow the examples below:
AFFIRMATIVE NEGATIVE QUESTION
I HAVE FLOWN I HAVEN`T FLOWN HAVE I FLOWN?
YOU HAVE FLOWN YOU HAVEN`T FLOWN HAVE YOU FLOWN?
HE HAS FLOWN HE HASN`T FLOWN HAS HE FLOWN?
SHE HAS FLOWN SHE HASN`T FLOWN HAS SHE FLOWN?
IT HAS FLOWN IT HASN`T FLOWN HAS IT FLOWN?
WE HAVE FLOWN WE HAVEN`T FLOWN HAVE WE FLOWN?
THEY HAVE FLOWN THEY HAVEN`T FLOWN HAVE THEY FLOWN?
1)Use past simple or present perfect in the verbs between parentheses:
1) I (to be) to many airports around the world but I (not to be) to JFK yet.
2) Another pilot I know (to have) many incidents while flying overseas.
3) I (not to have) any experience as an instructor.
4) My mom (not to have) any children when she was in her twenties.
5) A different pilot (to fly) together with me last weekend.
6) I (always / to make) a flight plan.
7) My family (to have) breakfast together with me yesterday.
8) My best friend (to have) a lot of work last year but this year he (to have) more free time.
9) I (to work) in the same company for 20 years.
10) Last Monday, I (to land) a B 707 on a very short RNW.
2) There are 8 students in your class, the teacher proposes an exercise and gives students some time to finish. When you finish, you say:
a) I have finished the activity!
b) I finish the activity!
c) Finished the activity!
3)Underline the correct alternative in each case:
Henry is a retired captain, and he was / has been a pilot for 15 years. Last year, he worked / has worked for an aviation academy in Germany, and he has been / was an instructor there. He has flown / flew only with IFR pilots, but he didn`t stay / hasn`t stayed there long, because he has been / was very tired. So, he decided / has decided to go back to his hometown, Canada, after 3 months of work.
Now, Henry is feeling very well, and he was / has been very happy with his retired life. His parents told / have told him that he has already participated / already participated in many activities during his life, and now it`s time to take it easy.
Recently, Henry has decided / decided to start working again as a first officer. Yesterday he said / has said that he would only take it easy if he lost his life, and that he has thought / thought about a new opportunity to work for a local airline.
Answers:
1. have been; haven`t been; has had; haven`t had; didn`t have; flew; have always made; had; had; has had; have worked; landed.
2. a is correct.
3. has been; worked; was; flew; didn`t stay; was; has been; have told; has already participated; has decided; said; has thought or thought.
Answers:
1. have been; haven`t been; has had; haven`t had; didn`t have; flew; have always made; had; had; has had; have worked; landed.
2. a is correct.
3. has been; worked; was; flew; didn`t stay; was; has been; have told; has already participated; has decided; said; has thought or thought.
