Question

choose the correct sentence.

● I couldn't worked last night due to power failure.

● I couldn't work last night due to power failure​

Answer 1

Answer:  The second sentence is correct .

● I couldn't work last night due to power failure .

Explanation:

This is because there is no Subject -Verb Agreement in the first sentence .

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Answer 2

The question is answered below-

1. Between the two given options, the correct sentence is the second one- 'I could not work last night due to power failure.'

2. The second option is the correct sentence because the tenses are correctly used. Here the term ' could ' is helping the sentence to indicate that it is in the past tense. The sentence is structured properly when we use-

did/could + present tense of the verb.

For example-

I did sleep last night.

I could not go there.

                                 or,

If we are not using phrases like did/could, then we have to use past tenses of the verb if the action has already been completed.

For example-

I slept last night.

I ate last night.

3. For the above-mentioned reasons, the first option is incorrect.