Which part of the word imitate indicates that a verb?

The part of the word "imitate" that indicates it's a verb is the -ate ending.

Here's why:

* -ate is a common verb suffix in English. It often signifies the action of doing something.

* Other examples include:

* create, educate, activate, celebrate, decorate, etc.

While "im-" might be a prefix, it doesn't indicate the verb form. It indicates the meaning of "to copy or mimic".