may seem
Regular verb: seem - seemed- seemed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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it may seem
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it may be seeming
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it may have seemed
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it may have been seeming
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Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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it mayn't seem
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it mayn't be seeming
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it mayn't have seemed
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it mayn't have been seeming
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Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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may it seem?
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may it be seeming?
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may it have seemed?
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may it have been seeming?
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Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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mayn't it seem?
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mayn't it be seeming?
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mayn't it have seemed?
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mayn't it have been seeming?
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