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Present Perfect Simple vs. Continuous
Page 2: Mental States and Active Verbs
Grammar Explanation
Use the Present Perfect Simple with mental state verbs such as know, believe, understand, remember, forget. These verbs usually describe a state, not an action in progress.
Use the Present Perfect Continuous with active verbs when the focus is on duration, effort, or an activity continuing up to now.
| Verb Type | Examples | Usual Form |
|---|---|---|
| Mental state verbs | know, believe, understand, remember, forget | Present Perfect Simple |
| Active verbs | think about, study, read, discuss, practise | Present Perfect Continuous |
❌ I have been knowing the answer.
✅ I have known the answer.
✅ I have been thinking about the problem all day.
1. I ______ him since we were children.
have known
a) have known
b) have been knowing
[Ich kenne ihn, seit wir Kinder waren.]
2. She ______ about the problem all morning.
has been thinking
a) has thought
b) has been thinking
[Sie denkt schon den ganzen Morgen über das Problem nach.]
3. He ______ in ghosts all his life.
has always believed
a) has always believed
b) has always been believing
[Er hat sein ganzes Leben lang an Gespenster geglaubt.]
4. They ______ the instructions for half an hour.
have been reading
a) have read
b) have been reading
[Sie lesen seit einer halben Stunde die Anweisungen.]
5. I ______ the answer now.
have understood
a) have understood
b) have been understanding
[Ich habe die Antwort jetzt verstanden.]
6. We ______ this grammar point since nine o’clock.
have been practising
a) have practised
b) have been practising
[Wir üben diesen Grammatikpunkt seit neun Uhr.]
7. I ______ your name!
have forgotten
a) have forgotten
b) have been forgetting
[Ich habe deinen Namen vergessen!]
8. He ______ for the right answer all afternoon.
has been looking
a) has looked
b) has been looking
[Er sucht den ganzen Nachmittag nach der richtigen Antwort.]
9. She ______ that she was wrong.
has finally realized
a) has finally realized
b) has finally been realizing
[Sie hat endlich eingesehen, dass sie im Unrecht war.]
10. They ______ the question for twenty minutes.
have been discussing
a) have discussed
b) have been discussing
[Sie diskutieren seit zwanzig Minuten die Frage.]
11. We ______ with you on this point.
have always agreed
a) have always agreed
b) have always been agreeing
[Wir haben dir in diesem Punkt immer zugestimmt.]
12. I ______ this new method for a few weeks.
have been trying
a) have tried
b) have been trying
[Ich probiere diese neue Methode seit ein paar Wochen aus.]
13. How long ______ the truth?
have you known
a) have you known
b) have you been knowing
[Wie lange kennst du die Wahrheit schon?]
14. She ______ notes since the lesson started.
has been writing
a) has written
b) has been writing
[Sie macht Notizen, seit die Stunde begonnen hat.]
15. I ______ what you are saying.
have understood
a) have understood
b) have been understanding
[Ich habe verstanden, was du sagst.]
16. He ______ for his exam all week.
has been studying
a) has studied
b) has been studying
[Er lernt die ganze Woche für seine Prüfung.]
17. He ______ that story for years.
has remembered
a) has remembered
b) has been remembering
[Er hat sich jahrelang an diese Geschichte erinnert.]
18. They ______ the same mistake again and again.
have been making
a) have made
b) have been making
[Sie machen immer wieder denselben Fehler.]
19. I ______ that he was a good man.
have always thought
a) have always thought
b) have always been thinking
[Ich habe schon immer gedacht, dass er ein guter Mann ist.]
20. We ______ about his idea since lunch.
have been talking
a) have talked
b) have been talking
[Wir sprechen seit dem Mittagessen über seine Idee.]
21. I ______ her for a very long time.
have known
a) have known
b) have been knowing
[Ich kenne sie schon sehr lange.]
22. The students ______ questions for the last ten minutes.
have been asking
a) have asked
b) have been asking
[Die Schüler stellen seit zehn Minuten Fragen.]
23. We ______ the importance of exercise.
have realized
a) have realized
b) have been realizing
[Wir haben die Wichtigkeit von Sport erkannt.]
24. She ______ the presentation since this morning.
has been preparing
a) has prepared
b) has been preparing
[Sie bereitet seit heute Morgen die Präsentation vor.]
25. They ______ their promise.
have not forgotten
a) have not forgotten
b) have not been forgetting
[Sie haben ihr Versprechen nicht vergessen.]
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The Nuance of "Mean": While "have meant" is grammatically possible, it often refers to the significance or definition of something. When expressing an ongoing intention or a "lingering thought," English speakers almost exclusively use the present perfect continuous: "have been meaning to."
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The "Since" Factor: The phrase "since the beginning" emphasizes a duration of time. Using the continuous form highlights that this intention has been active and ongoing in their minds throughout that entire period.
Footnote 2
Key Points
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The "Knowing" Rule: You should almost never say "I am knowing" or "I have been knowing." It sounds very unnatural to native speakers.
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Tense Choice:
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"I didn't know" is used when you find out someone is there at that moment (e.g., "Oh! I didn't know you were here!").
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"I have not known" is technically possible but very rare; it would imply a long period of time up until now, but even then, "I didn't know" is preferred for specific facts.
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German vs. English: While German uses the Perfekt (habe gewusst) for this scenario, English defaults to the Simple Past (did not know) for a state of knowledge in that moment.