Question

She left the door open (Make it negative)

Answer 1

She did not leave the door open.

Answer 2

Sentence is classified into four categories, namely:

1. Assertive sentence: This is subdivided into two types, which are, Affirmative and Negative sentence. These kind of statements simply affirm or deny something. They are also known as Declarative sentences.
2. Imperative sentence: These types of sentences represent a command, request, advice, or any prohibition.
3. Exclamatory sentence: These sentences express some sudden or strong feeling
4. Interrogative sentence: Sentences which ask a question are categorized under this category.

Anyhow, the query requires us to convert the affirmative sentence into a negative statement . For this, we will introduce negative word 'not' in the statement and alter the verb by replacing it with an opposite word so as to express the same meaning that is carried by the given statement.

Answer: She did not close the door.