In the English language, a modal verb is a type of auxiliary verb. The key way to identify a modal verb is by its defectiveness (they have neither participles nor infinitives). In addition, modal verbs do not take the inflection -s or -es in the third person singular, unlike other verbs. A modal verb (also modal, modal auxiliary verb, modal auxiliary) is a type of auxiliary verb that is used to indicate modality -- that is, likelihood, ability, permission, and obligation. The use of auxiliary verbs to express modality is particularly characteristic of Germanic languages. Modal auxiliary verbs give more information about the function of the main verb that follows it. Although having a great variety of communicative functions, these functions can all be related to a scale ranging from possibility ("may") to necessity ("must"). Note that dare and need are much more commonly used as non-modal verbs, taking -s or -es in the third person singular and having an infinitive and past and present participles.
Modal verbs are another very popular topic in ESL classrooms so busy teachers have submitted 555 related worksheets. With so many to choose from and more being added regularly, you should take a look at the variety of worksheets available and consider using one of them with your students. Lets take a look at some of these brilliant worksheets. This is a simple modal verbs survey activity for elementary learners; the exercise is to help them practice asking and answers questions about what they can do. Another worksheet focuses on using the phrase must not and includes all the instructions for a card game. You can find that right here; your lower level learners will certainly enjoy it. There is also an article with some advice for teaching modal verbs so take a look at that before introducing the topic in your classes.
Modal verbs are used in so many different situations that you should include them throughout your ESL course especially when working with intermediate learners. Modals are used for talking about ability and necessity as well as many other things. Make sure students have a clear understanding of certain modal verbs before having a lesson on giving advice or making suggestions. These words are imperative for this type of lesson. You will certainly find a number of occasions to have students practice using modals so make sure you have a good, memorable introduction to get them started.