• English verbs can be placed in various classes depending on their meaning. In other words, they can be classified “semantically.” The most important of these classes are: event verbs and state verbs.
• Event verbs refer to events—happenings that begin and end at a definite time. For example, the verb build as it is used in the sentence Jack built a beautiful house by the beach is an event verb.
• State verbs refer to states—conditions or situations that are seen as not having any definite beginning or end; they are seen as permanent, in other words. For example, the verb own as it is used in the sentence Jack owns a beautiful house by the beach is a state verb.
Why state verbs are seen as not having any definite beginning or end?
Now see this sentence "I am at home" ("to be" is a state verb in this case). And, if you have a good watch, you can pinpoint the precise time you enter your house & the precise time you walk out of your house.
Another example, "I see her! I see her!" ("to see" is a state verb in this case). If you have someone watch your behavior, that person can define the specific time that you start seeing her & the time you stop seeing her.