True: Have to is used to express an obligation, The modal should is used whenever we want to suggest or offer something to someone, We use must to persuade someone, The modal may is an auxiliary verb that is in the present tense, The modal might is an auxiliary verb that is in the past tense, The may is the biggest chance of something, The might is the smallest chance of something, The difference between must and have to is the level of objectivity and subjectivity, Modal verbs work as a type of auxiliary verbs that can complement or change the meaning of the main verb., We also use must to say a personal belief., False: Have to is not used to express an obligation, The modal should is not used whenever we want to suggest or offer something to someone, We use must not to persuade someone, The modal may is not an auxiliary verb that is in the present tense, The modal might is not an auxiliary verb that is in the past tense, The may is not the biggest chance of something, The might is not the smallest chance of something, There is no difference between the must and the have to, Modal verbs have no function, We use must only to say a personal belief,

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