Question

The children (finish) doing their homework by nine o clock. finished had finished had finish​

Answer 1

The children finished doing their homework at nine o'clock.

Answer 2

To answer your question, let's break down the different verb forms and tenses used in the sentence:

1. "The children (finish) doing their homework by nine o'clock."

Here, the verb form "finish" is in the present simple tense. This indicates a habitual or repeated action. So, we can rewrite the sentence as:

"The children finish doing their homework by nine o'clock."

2. "finished"

The word "finished" is in the past simple tense. It indicates that the action of finishing the homework has already taken place. However, this tense does not match the tense of the main verb "finish" in the sentence. It would be more appropriate to use the present perfect tense to indicate a completed action in the past that has relevance to the present. So, we can rewrite the sentence as:

"The children have finished doing their homework by nine o'clock."

3. "had finished"

The phrase "had finished" is in the past perfect tense. This tense is used to describe an action that was completed before another past action or point in time. However, in the given sentence, there is no clear indication of a past action or point in time that would require the use of the past perfect tense. Therefore, using "had finished" would not be grammatically correct in this context.

4. "had finish"

The phrase "had finish" is not a grammatically correct construction. It is neither in the past simple nor the past perfect tense.

In summary, the most appropriate tense to use in the given sentence is the present simple tense, as it indicates a habitual or repeated action. The correct sentence would be:

"The children finish doing their homework by nine o'clock."

I hope this explanation helps! Let me know if you have any further questions.