Lesson 9 Table 2


Helping verbs that do not change form.

  can  I can go.  I am able to go.
  could  I could go.  I have permission to go.
  may  I may go.  It is possible that I will go.
  might  I might go.  I could go but probably will not.
  must  I must go.  I will go because I do not have a choice.
  shall  I shall go.  It is inevitable that I will go.
  should  I should go.  I should go but don’t want to.
  will  I will go.  It is certain that I will go.
  would  I would go.  I would go if I could, but I cannot.

These helping verbs do not change form with person or time. For example: I might go. He might go. You might go. We might go. They might go.


Helping verbs that change form.

  Verb   Regular forms   Negative forms
  TO DO   do, does, did   don’t, doesn’t, didn’t
  TO HAVE   have, has, had   haven’t, hasn’t, hadn’t
  TO BE   be, am, is, are, was, were, being, been   isn’t, aren’t, wasn’t, weren’t

These helping verbs change form with person and time. For example: I do go. He does go. You do go. I did go. We did go. They did go. I have gone. He has gone. We have gone. I had gone. She had gone. We had gone.