How do you change participate into a noun?

You can't directly change "participate" into a noun. It's a verb, meaning "to take part in something."

Here are ways to create a noun related to participation:

* Participation: This is the most direct way. It's the noun form of "participate".

* Participant: This refers to a person who takes part in something.

* Participation rate: This refers to the number of people participating in a particular activity.

* Involvement: This is a broader noun that can encompass participation.

The best way to change "participate" into a noun depends on the specific context of your sentence.