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The Continuous Form
The past continuous
was /were+ present participle.
e.g
He, she, it drinking
they were drinking.
The future continuous
shall, /will be +present participle.
e.g
I shall/will be working be staying.
The present perfect continuous;
Have/has been +present participle.
e.g
I have been playing.
He has been skiing.
The past perfect continuous
had been +present participle.
e.g
I had been speaking
He had been watching.
The future perfect continuous
will have been +present participle.
e.g
I shall/will have been reading.
He will have been painting.
Below is a list of auxiliary verbs with principal forms;
A- Be
Have
Do
Bare
Be
Have
Do
present tense
am/is /are
have/has
do/does
past tense
p.p
was/were
been
had
had
did
done
Models;
Can
May
Must
Will
Shall
Need
Have to
Ought to
Used to
Dare
could
might
-----would
should
The above verbs are called auxiliary because they
help to form tenses by combining with present participle, the
past participle or the bare infinitive of the main verb.
e.g
I am writing.
They have finished.
She does not speak Spanish.
These verbs, particularly the modals, have other functions .