There are stative verbs and dynamic verbs.
Dynamic verbs describe a physical action, like to run, to read, to call. Stative verbs (also called state, non-continuous) describe an abstract action like to believe, to want, to seem etc. We need stative verbs to express our attitude, opinion, feelings, senses, ownership and so on.
It is important to remember that we don't put stative verbs into continuous tenses. It means we don't add -ing to them. Dynamic verbs can be used in simple as well as in continuous tenses.
Table of the basic stative verbs
|Emotions||Thoughts, opinions, intellectual processes||Senses||Possession||Measures and others|
have (in the meaning of possession)
Do you need any help now? NOT Are you needing any help?
I don't understand what he's saying. NOT I'm not understanding...
We have owned this house for twenty years. NOT We have been owning...
think and thinking
The verb "think" has two meanings:
- to think = have an opinion, believe
- to think = consider
When "think" means "consider", it can be used either in the simple or in the continuous tense.
Isn't it a great idea? What do you think? = What is your opinion?
I think we'd better go home. = I believe that...
I'm still thinking about that offer. Should I agree or not? = I'm considering it
I've been thinking, what if we spend Christmas in Switzerland? = I've been playing aroung with the idea