how to converting Past Perfect Tense negative sentences to interrogative form

Identify the negative past perfect sentence: Start with a sentence in the negative past perfect tense. For example: “They had not finished their homework.”
Start with the helping verb: In English interrogative sentences, the helping verb (in this case, “had”) is usually moved to the beginning of the sentence. This forms the basis for the question. For our example, it becomes: “Had they not finished their homework?”
Invert the subject and helping verb: The subject of the original sentence (“They”) should be moved after the helping verb. In our example, it becomes: “Had they not finished their homework?”
Add a question mark: To indicate that this is a question, add a question mark at the end. The final interrogative sentence is: “Had they not finished their homework?”

how to converting Past Perfect Tense negative sentences to interrogative form

Now, let’s expand on this process and provide more examples:

Original Negative Past Perfect Sentences:

She had not visited Paris before.
We had not seen that movie yet.
He had not completed the project.

how to converting Past Perfect Tense negative sentences to interrogative form

Converting to Interrogative Form:

Had she not visited Paris before?
Had we not seen that movie yet?
Had he not completed the project?

In each case, we’ve followed the same pattern of moving the helping verb (“had”) to the beginning of the sentence, inverting the subject and helping verb, and adding a question mark to form interrogative sentences.

how to converting Past Perfect Tense negative sentences to interrogative form

This process works for converting negative past perfect tense sentences to interrogative form consistently. Keep in mind that word order may vary depending on the specific sentence structure, but the key is to move the helping verb to the front to create a question.