continuous tense: any tense, past, present or future, formed with the auxiliary verb be  and a main verb in -ing form (for example: he is speaking, they have been working)

There are some verbs that we do not normally use with continuous (or progressive) tenses. And there are other verbs that have one meaning with simple tenses and a different meaning with continuous tenses.

Non-continuous Verbs

Non-continuous verbs are verbs that we do not normally use with continuous tenses. These "stative" verbs are about state, not action, and they cannot express the continuous or progressive aspect. Here are some of the most common non-continuous verbs:

  • feeling:  hate, like, love, prefer, want, wish
  • senses:  appear, feel, hear, see, seem, smell, sound, taste
  • communication:  agree, deny, disagree, mean, promise, satisfy, surprise
  • thinking:  believe, imagine, know, mean, realize, recognize, remember, understand
  • other states:  be, belong, concern, depend, involve, matter, need, owe, own, possess

Look at these example sentences, right and wrong:

I want  a coffee.not  I am wanting a coffee.
I  don't believe you are right.not  I am not believing you are right.
Does  this pen belong  to you?not  Is this pen belonging to you?
It seemed wrong.not  It was seeming wrong.
I  don't hear anything.not  I am not hearing anything.

Notice that we often use can + see/hear:

  • I  can see someone in the distance. not  I am seeing someone in the distance.
  • I  can't hear you very well. not I am not hearing you very well.
With verbs that we cannot use in continuous tenses, there is no real action or activity. Compare hear and listen . The verb "hear" means "receive sound in your ears". There is no action or activity by you. We cannot use hear  with continuous tenses. But listen  means "try to hear". You make an effort to hear. There is a kind of action or activity. We can use listen  with continuous tenses.

Dual Meaning Verbs

Some  verbs have two different meanings or senses. For one sense we cannot use a continuous tense. For the other sense we can use any tense.

For example, the verb think  has two different meanings:

  1. to believe, to have an opinion
    I think red is a sexy colour.
  2. to reflect, to use your brain to solve a problem
    I am thinking about my homework.

In sense 1 there is no real action, no activity. This sense is called "stative". In sense 2 there is a kind of action, a kind of activity. This sense is called "dynamic".

When we use the stative sense, we cannot use a continuous tense. When we use the dynamic sense, we can use any tense, depending on the situation.

Look at the examples in the table below:

Stative senseDynamic sense
no real actiona kind of action
must usecan use
non-continuous tensecontinuous tensenon-continuous tense
I think  she is beautiful.Be quiet! I'm thinking!I  will think about this problem tomorrow.
I  don't consider that he is right for the job.We  are considering your job application and will give you our answer in a few days.We consider  every job application very carefully.
This table measures  4 x 6 feet.She  has been measuring the room for a new carpet.A good carpenter measures  his wood carefully.
Does the wine taste good?I  was tasting the wine when I dropped the glass.I have always tasted  wine before drinking it.
Mary has  three children.Please phone later. We are having dinner now.

We have  dinner at 8pm every day.

If you have a doubt about a particular verb, ask yourself the question: "Is there any real action or activity?"

be  and Continuous Tenses

The verb be  can be an auxiliary verb (Marie is learning English) or a main verb (Marie is French). On this page we look at be  as a main verb.

Usually we do not use main verb be  with continuous tenses. For example, we say:

  • London is the capital of the UK. not  London is being the capital of the UK.
  • Is she beautiful? not  Is she being beautiful?
  • Were you late? not  Were you being late?

Sometimes, however, we can use main verb be  with a continuous tense. This is when the real sense of be  is "act" or "behave". Also, the action is temporary. Compare the examples in the table below:

be  as main verb
simple tensecontinuous tense
Mary is a careful person. (Mary is always careful - it's her nature.)John is being careful. (John is acting carefully now, but maybe he is not always careful - we don't know.)
Is he always so stupid? (Is that his personality?)They were being really stupid. (They were behaving really stupidly at that moment.)
Andrew is not usually selfish. (It is not Andrew's character to be selfish.)Why is he being so selfish? (Why is he acting so selfishly at the moment?)

Notice that we also make a difference between "to be sick" and "to be being sick":

  • She is sick (= she is not well)
  • She is being sick (= she is vomiting)
Here is main verb be  conjugated in the Present Continuous tense:
I am being
You are being
He, she, it is being
We are being
They are being

sources : Original Link