Nicht vergessen: Regeln sind Leitlinien – sie sind nur selten absolut.

Present Perfect – State Verbs: Mental States (1–25)

Present Perfect Simple vs. Continuous

Page 2: Thinking, Belief, and Knowledge

Grammar Explanation

State verbs related to the mind describe a state of awareness. Unlike physical actions (like running), mental processes like knowing or believing are treated as constant states in English.

The Rule: Never use the -ing form for mental states, even if the thought has been happening for a long duration. Use the Present Perfect Simple.
Category Common Mental State Verbs
Knowledge know, understand, realize, recognize
Belief believe, suppose, doubt, agree
Memory remember, forget
Opinions think (believe), mean, imagine
Common Mistake:
I have been knowing the answer for ten minutes.
I have known the answer for ten minutes.
Score: 0 / 25

1. I ______ him since we were children. (State: Knowledge)
a) have known
b) have been knowing [Ich kenne ihn, seit wir Kinder waren.]

2. He ______ in ghosts all his life. (State: Belief)
a) has always believed
b) has always been believing [Er hat sein ganzes Leben lang an Gespenster geglaubt.]

3. I ______ the answer now. (State: Understanding)
a) have understood
b) have been understanding [Ich habe die Antwort jetzt verstanden.]

4. They ______ to help us since the beginning. (State: Intent)
a) have meant
b) have been meaning [Sie hatten von Anfang an die Absicht, uns zu helfen.]

5. I ______ your name! (State: Memory)
a) have forgotten
b) have been forgetting [Ich habe deinen Namen vergessen!]

6. She ______ that she was wrong. (State: Realization)
a) has finally realized
b) has finally been realizing [Sie hat endlich eingesehen, dass sie im Unrecht war.]

7. We ______ with you on this point. (State: Opinion)
a) have always agreed
b) have always been agreeing [Wir haben dir in diesem Punkt immer zugestimmt.]

8. How long ______ the truth? (State: Knowledge)
a) have you known
b) have you been knowing [Wie lange kennst du die Wahrheit schon?]

9. I ______ what you are saying. (State: Understanding)
a) have understood
b) have been understanding [Ich habe verstanden, was du sagst.]

10. He ______ that story for years. (State: Memory)
a) has remembered
b) has been remembering [Er hat sich jahrelang an diese Geschichte erinnert.]

11. I ______ that he is a good man. (State: Belief)
a) have always thought
b) have always been thinking [Ich habe schon immer gedacht, dass er ein guter Mann ist.]

12. They ______ any of the details. (State: Memory)
a) have not remembered
b) have not been remembering [Sie haben sich an keines der Details erinnert.]

13. I ______ her for a very long time. (State: Knowledge)
a) have known
b) have been knowing [Ich kenne sie schon sehr lange.]

14. We ______ the importance of exercise. (State: Realization)
a) have realized
b) have been realizing [Wir haben die Wichtigkeit von Sport erkannt.]

15. She ______ about the problem before. (State: Opinion)
a) has thought
b) has been thinking [Sie hat schon früher über das Problem nachgedacht.]

16. I ______ that you were here. (State: Knowledge)
a) have not known
b) have not been knowing [Ich habe nicht gewusst, dass du hier bist.]

17. He ______ the recipe perfectly. (State: Memory)
a) has remembered
b) has been remembering [Er hat sich das Rezept perfekt gemerkt.]

18. They ______ why the door was locked. (State: Understanding)
a) have understood
b) have been understanding [Sie haben verstanden, warum die Tür verschlossen war.]

19. I ______ that for a second. (State: Belief)
a) have doubted
b) have been doubting [Ich habe das für eine Sekunde bezweifelt.]

20. You ______ your keys again! (State: Memory failure)
a) have forgotten
b) have been forgetting [Du hast schon wieder deine Schlüssel vergessen!]

21. We ______ in the same thing since 2010. (State: Belief)
a) have believed
b) have been believing [Wir glauben seit 2010 an dieselbe Sache.]

22. I ______ your advice. (State: Understanding)
a) have understood
b) have been understanding [Ich habe deinen Rat verstanden.]

23. She ______ my phone number. (State: Memory)
a) has remembered
b) has been remembering [Sie hat sich an meine Telefonnummer erinnert.]

24. I ______ what that word means. (State: Knowledge)
a) have never known
b) have never been knowing [Ich habe nie gewusst, was dieses Wort bedeutet.]

25. They ______ their promise. (State: Memory)
a) have not forgotten
b) have not been forgetting [Sie haben ihr Versprechen nicht vergessen.]