Verb

VERB:--  
 

  A verb is a word that expesses an action or state of being.

  e.g. :-- Eat, play, is, was etc.

       * Hari is my friend.
        
       * Radha is dancing.
        
       * Sohan plays football.

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     IDENTIFICATION  OF  A  VERB :--

   If a word is a verb:

 1.  It can be stated in the third person singular verb form:

 2.  It can be formed with an ing ending.

 3.  It can be used with a modal verb.

Example: Is the word dance a verb?

1.  It can be used in third person singular: He dances so well.

2.  It can be formed with an ing ending: The couple was dancing perfectly in the competition.

3.  It can be used with a modal: They could dance all night, if they didn't have work in the morning.

 The answer to all of these is 'yes'. 

Hence the word 'dance' is a verb.

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