Question

Change into negative
She must be hungry

Answer 1

She must not be hungry .....

Answer 2

She must not be hungry or She mustn't be hungry.

• The given sentence is positive and affirmative as it states that She must be hungry.
• To convert the positive sentence into negative, the word 'not' should be added to the auxiliary, or helping verb.
• In the given sentence, must is the auxiliary verb. Thus to change the given sentence into negative, 'not' should be added with must.
• When the sentence is written after the aforesaid alteration it becomes She must not be hungry.
• Thus it is inferred that:

She must be hungry - Affirmative sentence

She must not be hungry or She mustn't be hungry - Negative sentence

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