ESL Grammar Course
B2: Upper-Intermediate
Present Perfect Continuous
The Present Perfect Continuous focuses on the duration or continuity of an action that started in the past and is still happening now, or has just recently stopped. The key is the uninterrupted nature of the activity.
Structure:
`subject + have/has + been + verb-ing`
⚠️ Attention: Common Challenges
1. Continuous vs. Simple: The biggest challenge is choosing between the Present Perfect Continuous and the Present Perfect Simple.
- Continuous (Focus on duration): “I have been reading this book for three hours.” (Emphasizes the time spent reading).
- Simple (Focus on result/completion): “I have read 50 pages.” (Emphasizes the completed result).
2. `For` vs. `Since`: This distinction remains crucial.
- For: A period of time (e.g., for two hours, for ten years).
- Since: A specific point in time (e.g., since 8 AM, since 2015).
3. Stative Verbs: Remember that stative verbs (verbs of being, thought, or possession like `know`, `be`, `love`, `own`) are generally not used in continuous tenses.
- Correct: “I have known him for years.” (Incorrect:
I have been knowing him…)