CLASSES OF AUXILIARY VERBS

All auxiliary verbs are further classified into two classes:

i.                    Primary auxiliary verbs

ii.                  Modal auxiliary verbs

Primary auxiliary verbs are from three grammatical variants:

a.      Do-variants

b.      Be-variants

c.       Have-variants

Let’s pick them one after another.

Primary Auxiliary Verbs

DO-variants

‘Do’ has five grammatical variants which are:

            Do

            Does

            Did

            Doing

            Done

Consider the tense table blow

Present(plural)	present(singular)	continuous	past	perfect
do	does	doing	did	done

Let’s use the above in five different sentences.

I)                    They do fight always

II)                  She does walk majestically

III)                They are doing it right now

IV)               We did eat rice yesterday

V)                 We have done it

Note:

Among the Do-variants, ‘doing’ and ‘done’ are anomalous because they act as the main verbs. Likewise, the rest of Do-variants are capable of acting as the main verbs. For example:

I)                    He does his assignment so quickly

II)                  We did the work ourselves

III)                I can do it well

Exercise

Make ten sentences using the words from the table below

subject	Do-variants	Main verbs	Objects/complements
Smith The dog Those people Our sisters My brother	does             do             did	kick bark sing fight play pray jump	the ball at night around aloud to God a lot

For example

1.      Those people did fight a lot.

2.      The dog does bark at night