Present Perfect Continuous
have been + -ing stresses duration up to now.
Examples
- I've been studying for two hours.
Key rules
- Form: have/has been + verb-ing
- Use it for an action that started in the past and continues now, or just stopped with a visible result
- Use for/since with duration
- Stative verbs like know or own do not take it
Common mistakes
- I am studying for two hours โ I have been studying for two hours
- She has been work here since May โ She has been working here since May
๐ก Tip: Ask yourself: is the focus on how long? If yes, use the continuous.