[Mister Micawber]

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Essentially all verbs take both:

Be + present participle to form the progressive: I am going.
Be + past participle to form the passive: I am eaten by mosquitos.
Be + past participle to form adjective complements: I am tired.
Have + past participle to form perfect aspects: I have/had eaten.

There are exceptions of course; intransitive verbs do not form passive voice, and some static verbs do not normally appear in continuous forms. Perhaps you would be better to make a list of these exceptions. There should be some sections on these in your grammar book.
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