Present Perfect vs. Present Perfect Continuous
In most cases, both tenses are acceptable.
- I have lived in Los Angeles since 1985.
- I have been living in Los Angeles since 1985.
There are some situations in which one of the tenses sounds better.
To emphasize duration of an action, use the continuous form
- I've been trading cars for 10 years.
To emphasize result of an action, use the simple form
- He has just come back from work.
- I have finished my workout.
- I've bought a new car.
Tip: Some words indicate which tenses should be used
The simple form
"never" and "ever"
- Kimberly has never had an accident.
- Have you ever seen an alien?
The continuous form
"how long", "since" and "for"
- How long have you been staring at this car?
- I have been fishing for 2 hours.