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V-ing form
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Perfect
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V-ing perfect
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Negation
Simple form
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V-ing form
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Perfect
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V-ing perfect
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Interrogative form
Simple form
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V-ing form
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Perfect
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V-ing perfect
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Interro-negative form
Simple form
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V-ing form
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Perfect
mustn't I have consisted? mustn't you have consisted? mustn't she have consisted? mustn't we have consisted? mustn't you have consisted? mustn't they have consisted?
V-ing perfect
mustn't I have been consisting? mustn't you have been consisting? mustn't she have been consisting? mustn't we have been consisting? mustn't you have been consisting? mustn't they have been consisting?