Learn English Grammar: Lesson 18 (Part 1) – Modals 1. What Are Modals? Modals are words that help main verbs by changing the meaning of the sentence. Modals are used to express: 1 requests and permission Can you stop at the grocery store on the way home? 2 ability When I was a child, I … Continue reading Learn English Grammar: Lesson 18 (Part 1) – Modals