The Group of Tenses of the Passive Voice

The Group of Tenses of the Passive Voice

In the passive voice construction with to be and past participle, the focus is on the action being done to the subject, rather than the subject performing the action. This construction emphasizes the result or effect of the action, rather than who is doing the action. For example, in the sentence The cake was baked by the chef, the focus is on the cake and the fact that it was baked, rather than the chef who did the baking. This construction is useful when the doer of the action is unknown, unimportant, or when the speaker wants to emphasize the result of the action rather than who performed it.

Modal Verbs: might

Modal Verbs: might

Might with the indefinite infinitive is used to express possibility or uncertainty in the present or future.In the perfect infinitive form, might have is used to express possibility or uncertainty in the past  

Modal Verbs: must

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)