English verb conjugation COULD SEEM
Regular verb: seem - seemed - seemed
Affirmation
Simple form
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it could seem
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V-ing form
--
it could be seeming
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Perfect
--
it could have seemed
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V-ing perfect
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it could have been seeming
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Negation
Simple form
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it couldn't seem
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V-ing form
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it couldn't be seeming
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Perfect
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it couldn't have seemed
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V-ing perfect
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it couldn't have been seeming
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Interrogative form
Simple form
--
could it seem?
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V-ing form
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could it be seeming?
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Perfect
--
could it have seemed?
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V-ing perfect
--
could it have been seeming?
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Interro-negative form
Simple form
--
couldn't it seem?
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V-ing form
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couldn't it be seeming?
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Perfect
--
couldn't it have seemed?
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V-ing perfect
--
couldn't it have been seeming?
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