How do you use the modal verb "could" correctly in ...

[ Modals ]

How do you use the modal verb “could” correctly in a sentence?

A. He could to help

B. He could helps

C. He could help

D. He could helping

Select your answer:

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Complete the sentences with either infinitives or gerunds.

Few people could afford ________ a house as big as that.

A. to buy

B. buying

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They _________ in the school concert a week ago.

A. will sing

B. sang

C. sing