English Grammar Modal verbs in English: ability, obligation, possibility Modal verbs in English Modal Verbs to Describe Possibility, Obligation & Ability What are modal verbs ? These verbs: will , would , shall , should , can , could , may , might , are modal verbs and follow special rules in English grammar. 1. Negative form: followed by not or n’t musn’t , should not , couldn’t , shall not , will not 2. Question form: before subject Could you help me, please? Would you like a beer? 3. They have only one form: they have no infinitive, present participle or past participle, or –s termination. 4. These verbs are followed by an infinitive without to We should call Bob about the party. ( not We should to call Bob about the party) What are semi modals? Semi modals are verbs which have some of the characteristics of modal verbs. For example need , have to / have ( got ) to , ought to and used to Which modal verbs...