Tag: must
The Indicative Mood-the Passive Voice
In the passive voice, the subject of the sentence receives the action of the verb, rather than performing the action itself. The passive voice is formed using a form of the verb to be followed by the past participle of the main verb.
Modal Verbs
Modal verbs are a type of auxiliary verb that indicate modality, or the speaker's attitude towards the action or state described by the main verb.
Modal Verbs: ought to
Ought to is a modal auxiliary verb that is used to express obligation or duty. It is often used to suggest a moral or ethical obligation, rather than a legal obligation
Modal Verbs: must
Must with the indefinite infinitive is used in the present to express a strong obligation, necessity or deduction. Examples: I must study for my exam. (strong obligation)