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ModalAuxiliaries

Active – PassiveVoice

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What is ModalAuxiliary?

A modal verb (also 'modal','modal auxiliary verb',

'modal auxiliary') is a type of auxiliary verb that isused to indicate modality - that is lielihood, ability,

permission, and obli!ation"

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Modal Verb

#an $ could

Must

%hall $ should

&u!ht to

May $ mi!ht

as $ ave to

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Modal + be + past

participle of verb

When we change a sentence withmodals such as can, may or must

from the active voice to the passivevoice, we have to change the verb inthese ways:

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 ypes of %entences %imple and

#ompound

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