It is extremely important to understand that NOT all English verbs are the same. English verbs are divided into three groups: Normal Verbs, Non-Continuous Verbs, and Mixed Verbs.
Group I - Normal Verbs
Most verbs are "Normal Verbs." These verbs are usually physical actions which you can see somebody doing. These verbs can be used in all tenses.Normal Verbs
to run, to walk, to eat, to fly, to go, to say, to touch, etc.Examples:
- I eat dinner every day.
- I am eating dinner now.
Group II - Non-Continuous Verbs
The second group, called "Non-Continuous Verbs," is smaller. These verbs are usually things you cannot see somebody doing. These verbs are rarely used in continuous tenses. They include:Abstract Verbs
to be, to want, to cost, to seem, to need, to care, to contain, to owe, to exist...Possession Verbs
to possess, to own, to belong...Emotion Verbs
to like, to love, to hate, to dislike, to fear, to envy, to mind...Examples:
- He is needing help now. Not Correct
- He needs help now. Correct
- He is wanting a drink now. Not Correct
- He wants a drink now. Correct
Group III - Mixed Verbs
The third group, called "Mixed Verbs," is the smallest group. These verbs have more than one meaning. In a way, each meaning is a unique verb. Some meanings behave like "Non-Continuous Verbs," while other meanings behave like "Normal Verbs."Mixed Verbs
to appear, to feel, to have, to hear, to look, to see, to weigh...List of Mixed Verbs with Examples and Definitions:
to appear:- Donna appears
     confused. Non-Continuous Verb
 Donna seems confused.
- My
     favorite singer is appearing at the jazz club tonight. Normal
     Verb
 My favorite singer is giving a performance at the jazz club tonight.
- I have
     a dollar now. Non-Continuous Verb
 I possess a dollar.
- I am
     having fun now. Normal Verb
 I am experiencing fun now.
- She hears
     the music. Non-Continuous Verb
 She hears the music with her ears.
- She is
     hearing voices. Normal Verb
 She hears something others cannot hear. She is hearing voices in her mind.
- Nancy looks tired. Non-Continuous Verb
 She seems tired.
- Farah is
     looking at the pictures. Normal Verb
 She is looking with her eyes.
- John misses
     Sally. Non-Continuous Verb
 He is sad because she is not there.
- Debbie is
     missing her favorite TV program. Normal Verb
 She is not there to see her favorite program.
- I see
     her. Non-Continuous Verb
 I see her with my eyes.
- I am
     seeing the doctor. Normal Verb
 I am visiting or consulting with a doctor. (Also used with dentist and lawyer.)
- I am
     seeing her. Normal Verb
 I am having a relationship with her.
- He is
     seeing ghosts at night. Normal Verb
 He sees something others cannot see. For example ghosts, aura, a vision of the future, etc.
- The
     coffee smells good. Non-Continuous Verb
 The coffee has a good smell.
- I am
     smelling the flowers. Normal Verb
 I am sniffing the flowers to see what their smell is like.
- The
     coffee tastes good. Non-Continuous Verb
 The coffee has a good taste.
- I am
     tasting the cake. Normal Verb
 I am trying the cake to see what it tastes like.
- He thinks
     the test is easy. Non-Continuous Verb
 He considers the test to be easy.
- She is
     thinking about the question. Normal Verb
 She is pondering the question, going over it in her mind.
- The table
     weighs a lot. Non-Continuous Verb
 The table is heavy.
- She is
     weighing herself. Normal Verb
 She is determining her weight.
Some Verbs Can Be Especially Confusing:
to be:- Joe is
     American. Non-Continuous Verb
 Joe is an American citizen.
- Joe is
     being very American. Normal Verb
 Joe is behaving like a stereotypical American.
- Joe is
     being very rude. Normal Verb
 Joe is behaving very rudely. Usually he is not rude.
- Joe is
     being very formal. Normal Verb
 Joe is behaving very formally. Usually he is not formal.
to feel:
- The
     massage feels great. Non-Continuous Verb
 The massage has a pleasing feeling.
- I don't
     feel well today. Sometimes used as Non-Continuous Verb
 I am a little sick.
 I am not feeling well today. Sometimes used as Normal Verb
 I am a little sick.
