The Function of Auxiliary or Verb TO BE. A sentence is a group of words usually containing a verb, that expresses a thought in the form of a statement, question, instruction, or exclamation which, when they are written down, begin with a capital letter and end with a full stop, question mark, or exclamation mark.
From the meaning of sentence above, we can conclude that verb plays important role in a sentence, but what should we do when there is no real verb in making a sentence? The solution is by adding an auxiliary.
- Kinds of TO BE
There are eight kinds of TO BE, they are:
It can be difficult to understand the meaning.
I am studying English.
She is writing a letter.
We are happy.
He was active.
They were going abroad.
Marcel has been planning his wedding party.
- The function of TO BE
There two functions of TO BE. They are:
A. As Auxiliary
TO BE is function as auxiliary when there is a main verb (verb) after TO BE in a sentence. It can be followed by two kinds of Main Verb. They are:
To be + Verb1 + ing
I am speaking English. (Present Continuous Tense)
She was playing a game. (Past Continuous Tense)
When TO BE is followed by main verb, the main verb should be in third form (Verb3). And the sentence in which verb3 follows TO BE is called Passive Voice. The form is
TO BE + Verb3
The dog is killed by a hunter.
George will be accompanied by his wife.
The cake has been eaten by my son.
B. As Main Verb
She was sad. (sad = adjective)
This is my suitcase. (my suitcase = noun)