Examples

Example 1

If Brett asks Erin to prom, she might die.

In this example, the main verb, die, is helped by might. As for Erin, she's beyond help. Get a grip, Erin.

Example 2

Laura could go to Jason's party, or she could stay home and play Grand Theft Auto in her pajamas all weekend.

Here, both go and stay are helped by the verb could.

Example 3

Will you ask your mom if I can stay for dinner?

Here, we add the verb will to the main verb, ask, to form a question. A very, very important question since it's meatloaf night.