When a modal verb is followed by another auxiliary verb (e.g., “have,” “be”), the main verb takes either the past participle form (typically ending in “-ed,” “-n,” or “-t”) or the present participle form (ending in “-ing”).
Modal verbs can be used along with auxiliary verbs to refer to possible past, continuous, or future action. Examples: Auxiliary verbs in a sentenceMary was building a sandcastle. However, unlike modal verbs, regular auxiliary verbs follow subject-verb agreement and must be conjugated for tense and mood. Auxiliary verbs are used along with a main verb to express tense, mood, or voice. Modal verbs are classed as a type of auxiliary verb. Indicate a future action (normally used only with “I” and “we”)Īsk a question (normally used only with “I” and “we”) Note that modal verbs are very commonly used in a wide variety of senses-this table doesn’t cover every possible usage. Modal verb tableīelow is a table that illustrates some of the various uses of modal verbs. Lina must order tickets in advance if she wants to go to the theater. You may have as many cookies as you’d like. Examples: How to use modal verbsI might walk to work today. Modal verbs come before main verbs and never change form. In sentences containing modal verbs, the main verb typically takes the infinitive form. Modal verbs are used along with a main verb to indicate ability, necessity, possibility, and permission.
