Would (something) be (adjective)?

Use "would" in questions when you're asking about something that's not sure to happen yet. In the example above, the speaker isn't sure whether he will get the mouth guard yet. So he asks "Do you know whether that would..."

If the speaker had already decided to get the mouth guard, whether his insurance will pay for it or not, he would ask:

Do you know whether that'll (that will) be covered by my insurance?

This phrase appears in these lessons: