The Verb "Could"
How is the verb tense "could" used?
The English verb "could" is used as both an auxiliary verb and a modal verb? Could is almost always used with a main verb tenses.
- Could is used as the past tense of "can".
- Could is used to is used to request something in the present tense.
- Usually when could is used in the present tense, it is used to ask a question.
- Could the girls come with me to the store?
- I could not go to the moves last night, I had to study.
- We could not help you clean the house.
Structure of "could":
- When using as a model verb or an auxiliary verb the verb "could" stays in its base form.
- Could does not change form according to the subject.
- Could is followed by a main verb. The main verb also stays in its base form. The main verb that is used with could does not change form according to the subject.
|Positive Sentences||I||could||-||go||to the store|
|Negative Sentences||We||could||not||go||to the store|
|Questions**||Could||they||-||go||to the store|
* All 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.