Life Experience
Present Perfect
Use the present perfect when speaking about an experience that has happened before the present moment when the time of the event remains unspecified.
Example:
Have you tried to order the product from the manufacturer?
Have you hired the forklift driver?
They haven't had a forklift accident since Homer went on vacation.
In this case, the present perfect is used to express an experience without giving precise details. Whenever you speak about something that has happened up to now without giving a precise point in time, use the present perfect.
Positive Form:
Negative Form:
They haven't had a forklift accident since Homer went on vacation.
Question Form:
Have you hired the forklift driver?
'Ever' and 'Never' with the Present Perfect
Use the present perfect with both 'ever' and 'never'. These time expressions are often used to to discuss experiences.
She has never tried to solder on that part.
She has never operated the goods elevator.
Place 'ever' or 'never' directly before the past participle in the question form.
Have they ever considered high-density storage?
Have you ever considered changing the design of your hanging tag?
'Never' means 'not ever' and is a negative form of the present perfect.