could vilify
Regular verb: vilify - vilified- vilified

Affirmation 	
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I could vilify
you could vilify
he could vilify
we could vilify
you could vilify
they could vilify 	I could be vilifying
you could be vilifying
he could be vilifying
we could be vilifying
you could be vilifying
they could be vilifying	I could have vilified
you could have vilified
he could have vilified
we could have vilified
you could have vilified
they could have vilified	I could have been vilifying
you could have been vilifying
he could have been vilifying
we could have been vilifying
you could have been vilifying
they could have been vilifying	

Negation 	
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I couldn't vilify
you couldn't vilify
he couldn't vilify
we couldn't vilify
you couldn't vilify
they couldn't vilify 	I couldn't be vilifying
you couldn't be vilifying
he couldn't be vilifying
we couldn't be vilifying
you couldn't be vilifying
they couldn't be vilifying	I couldn't have vilified
you couldn't have vilified
he couldn't have vilified
we couldn't have vilified
you couldn't have vilified
they couldn't have vilified	I couldn't have been vilifying
you couldn't have been vilifying
he couldn't have been vilifying
we couldn't have been vilifying
you couldn't have been vilifying
they couldn't have been vilifying	

Interrogative form 	
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could I vilify?
could you vilify?
could he vilify?
could we vilify?
could you vilify?
could they vilify? 	could I be vilifying?
could you be vilifying?
could he be vilifying?
could we be vilifying?
could you be vilifying?
could they be vilifying? 	could I have vilified?
could you have vilified?
could he have vilified?
could we have vilified?
could you have vilified?
could they have vilified? 	could I have been vilifying?
could you have been vilifying?
could he have been vilifying?
could we have been vilifying?
could you have been vilifying?
could they have been vilifying? 	

Interro-negative form 	
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couldn't I vilify?
couldn't you vilify?
couldn't he vilify?
couldn't we vilify?
couldn't you vilify?
couldn't they vilify? 	couldn't I be vilifying?
couldn't you be vilifying?
couldn't he be vilifying?
couldn't we be vilifying?
couldn't you be vilifying?
couldn't they be vilifying? 	couldn't I have vilified?
couldn't you have vilified?
couldn't he have vilified?
couldn't we have vilified?
couldn't you have vilified?
couldn't they have vilified? 	couldn't I have been vilifying?
couldn't you have been vilifying?
couldn't he have been vilifying?
couldn't we have been vilifying?
couldn't you have been vilifying?
couldn't they have been vilifying?