None helped me, they.. ? (add suitable tag) ii. Nobody broke the vase. (into interrogative) iii. He has not written any books. (into affirmative) iv. Don't make noise. They (do) meditation inside room. (use correct from of verb) v. He said to me, “You aren't a student, are you?” (into indirect speech) vi. No word was spoken by him. (into active voice)

A question tag is a phrase added at the end of a question to emphasize it. The general structure of the question tag is auxiliary verb + subject. Moreover, if the first statement is negative the question tag is affirmative and vice versa.

None helped me (negative) = did they (affirmative tag)

How to make a sentence affirmative?

To make a sentence affirmative remove any negative words and adjust other words if necessary.

He has not written any books (remove not and replace any) = He has written some books

How to use the correct form of a verb?

To use the correct form of a verb consider the context to know if the action is happening, will happen, or is already finished.

Don't make noise. They (do) meditation inside the room (We can infer the action is in progress) = They are doing meditation.

How to change a sentence to indirect speech?

Indirect speech implies reporting what another person said, this usually implies a change in the verb, for example, a verb is present changes to past.

He said to me, “You aren't a student, are you?” = He asked me if I was a student.

How to change a sentence to an active voice?

In the active voice, the general structure is subject + verb + object or complement.

No word was spoken by him = He didn't speak any words.

Learn more about sentences in: https://brainly.com/question/1395561