Stative verbs are verbs that show a state and not an action.
You can group verbs that show a state in the following ways:-
Verbs that show thought - believe, doubt, know, understand etc.
Verbs that show possession - have, own, want, contain etc.
Verbs that show senses - hear, see, smell etc.
Verbs that show emotion - love, hate, want, need etc.
There are regular and irregular stative verbs. But when they are used to show a particular state they do not take the -ing form.
For Example:
- I like ice cream. (Never "I am liking...")
- I know a lot of English words. (Never "I am knowing...")
However, some verbs can be used to show an action or a state.
For Example:
- I think English is easy. = It is my opinion.
- I'm thinking of joining a new course. = I am considering it.