This product includes a 20-question practice activity for identifying and differentiating between action, linking, and helping verbs, and it includes an answer key.
I am in the process of creating practice activities and assessments to accompany all of my PowerPoints, so check back often.
Other purchase options:
1) I have a PowerPoint for introducing this concept in my listings ($3.00).
2) If you like this practice activity, you can purchase additional practice activities AND a formative ass