Write a sentence for each of the four future tenses using the subject "artists" and the verb "create."

1. future simple: The artists will create a masterpiece.
2. future simple progressive: The artists will be creating a masterpiece.
3. future perfect: The artists will have created a masterpiece by tomorrow.
4. future perfect progressive: The artists will have been creating a masterpiece for more than two hours.

The bell is just a signal that the set time of the end of class is passing. the teacher lets you know when it's okay to leave.