7 Read the table. How do we form the negative/interrogative form of had?

To form the negative form of "had," you need to add "not" after "had," and to form the interrogative form of "had," you need to invert the subject and "had."

Let's break it down step by step:

1. First, let's understand what "had" is. "Had" is the past tense form of the verb "have." It is used to show that something happened before another action or event in the past.

2. Negative form:
To form the negative form of "had," we simply add "not" after "had." So, the negative form of "had" is "had not" or "hadn't."

Example:
- Positive: I had finished my homework.
- Negative: I had not finished my homework. OR I hadn't finished my homework.

In the negative form, we use "had not" or "hadn't" to indicate that something was not done in the past.

3. Interrogative form:
To form the interrogative form of "had," we invert the subject and "had." In other words, we put "had" before the subject.

Example:
- Positive: She had visited London.
- Interrogative: Had she visited London?

In the interrogative form, we use "had" before the subject to ask a question about something that happened in the past.

So, to summarize:
- Negative form of "had": "had not" or "hadn't"
- Interrogative form of "had": Invert the subject and "had"

I hope this explanation helps you understand how to form the negative and interrogative forms of "had." Let me know if you have any further questions!