State Verbs

State Verbs
State verbs are verbs which do not normally have continuous tenses because they describe a state rather an action. These include:

1. verbs which express likes and dislikes: love, hate, like, prefer, dislike, etc.
2. verbs of perception: believe, know, seem, forget, remember, recognise, think, understand, etc.
3. verbs of the sentences: see, hear, look, smell, taste, feel, sound. We often use can or could with these verbs when we refer to what we see, hear, etc. at the moment of speaking.
4. some other verbs: be, contain, fit, include, have, own, owe, mean, appear, ect.

Some state verbs have continuous tenses, but there is a difference in meaning.
I think he's Italian.
I am thinking about my project.