Words like May, Might, Shall, Should, Can, Could etc. are called Modal Verbs.
Might is a modal verb used to express possibility or uncertainty about an action.
In this sentence, it indicates a possibility of seeing the person tomorrow.
The modal verb "can" expresses the ability to do something.
In the sentence, "They can fix the problem" means they are able to fix it.
The words like shall, should, ought to, will, would, must etc. are called Modal Verbs.
Modal verbs express necessity, possibility, or obligation.
"ought to" indicates a recommendation or obligation.
In the sentence "You should revise your lessons," the modal verb "should" expresses advice or a suggestion.
It indicates that the speaker is recommending or advising the listener to revise their lessons.
The modal verb "must" expresses necessity or obligation in this sentence.
It indicates that improving spelling is essential, not optional.
The phrase "I need to" expresses a requirement or necessity.
Modal verbs like "need to" indicate something essential or important.
"They should help him" is in the active voice,
Where the subject ("They") acts on the object ("him")
Shifting the focus from the doer (they) to the receiver of the action (he).
Therefore, the correct passive voice form is:
"He should be helped."
The traitors should be shot dead.
In passive voice, the subject (traitors) receives the action, and the auxiliary verb "should" remains unchanged.
The structure changes from "They should shoot" to "The traitors should be shot."
The phrase "possibility of rain" best matches the modal verb "may", which indicates uncertainty or possibility.
"May" is the most appropriate and polite way to express weather-related predictions.
The modal verb "could" is used here to politely ask someone to repeat something.
It softens the tone, making the request more courteous.
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