Modal verb Could uses
Could is a modal auxiliary verb and it is also the past form of Can.
Could is the most versatile modal verb amongst modal verbs. As it is used to express present, past and future .
Basic structure: subject +could +base form of the verb +object.
- Expressing past ability: we Use it for skills or general abilities in the past.
- Example: "When I was 12 years old,I could drive a car.
- When I was in class 6th ,I could swim.
- Suggesting a possibility: we Use could when we say that something is possible, but not certain.
- Example: our team could win the final.
- Example: they could reply you....
- Making polite requests: we Use "could " to ask for something in a polite way.
- Example: Could you pass the salt please?
- Could I take this chair?
- Making suggestions: we Use could to propose an idea .
- Example: "We could meet at the Library to settle this issue .
- Could have+iii.verb.
- We use "could have" to say that someone had the ability to do something but didn't.
- e.g. I could have passed this test.
- He could have called us.
- They could have informed us,but they did not bother.
- In negative sentences could is followed by not and in normal conversation we say the contracted form couldn’t. It sounds natural and fluent.
- e.g. sorry, I couldn't inform them.
- They could not answer.
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