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English Grammar

The Verb "could"

The Structure of the Verb Tense "could".

When using as a verb or an auxiliary verb tense the verb "could" stays in its base form.

Could doesn't change form according to the subject.

Could is followed by a main verb. The main verb tense also stays in its base form. The main verb tense doesn't change form according to the subject.

--
Subject
the verb "could" - "Main Verb Tense" -
Positive Sentences

I

could
-
go
to the store
Negative Sentences
We
could
not
go
to the store
Questions**
Could
they
-
go
to the store

* The subjects are I, we, they, you, plural nouns singular nouns and uncountable nouns.

**Questions - When could is used to ask a question "could" comes before the subject.


Have & Has Chart

Main Verb Tenses

May Have

May & May Have

Verb Groups

Auxiliary Verbs

Verb Tense "to be"

Verb Tense "to be" Chart

Future Verb Tenses

Modal Verbs

Modal Verb Rules

Verb Tense "Can"

Verb Tense "Could"

Verb Tense "Could" Structure

"Wishes" & Verb Tenses

"Wishes" & Verb Tense Chart

Verb Tense "Have"

Present Verb Tenses

Past Verb Tenses

Adjectives

There is & There are

Tag Questions

Tag Questions Quiz