Modals are part of a verb phrase; they give more information about the main verb by qualifying it in some way. Modals also influence the grammar of the verb phrase; after a modal, the infinitive form ...

Hopefully means “in a hopeful manner.” “I hope the boss lets us out early” and “Hopefully, the boss lets us out early” aren’t the same thing. On the other hand, these are grammar “rules” you can ...

Helping verbs are used in a verb phrase (that is, with a second verb) to show tense or form a question or a negative. Helping verbs are always followed by a second verb, and they show the perfect verb ...