Question

explain the rules of MODALS ...
it's a project work. at least 3-4 pages​

Answer 1

Answer:

first point primary help in IT acts with main verb example I am eating

second point it change the form of verb

third point sometimes it is used with main

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Answer 2

Explanation:

Add "not" after the verb is used to make a verb negative. Model verbs come before the subject in questions. Modal verbs do not change form according to the tense; there is no "s" added to the verb.