could hyperimmunize
Regular verb: hyperimmunize - hyperimmunized- hyperimmunized

Affirmation 	
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I could hyperimmunize
you could hyperimmunize
he could hyperimmunize
we could hyperimmunize
you could hyperimmunize
they could hyperimmunize 	I could be hyperimmunizing
you could be hyperimmunizing
he could be hyperimmunizing
we could be hyperimmunizing
you could be hyperimmunizing
they could be hyperimmunizing	I could have hyperimmunized
you could have hyperimmunized
he could have hyperimmunized
we could have hyperimmunized
you could have hyperimmunized
they could have hyperimmunized	I could have been hyperimmunizing
you could have been hyperimmunizing
he could have been hyperimmunizing
we could have been hyperimmunizing
you could have been hyperimmunizing
they could have been hyperimmunizing	

Negation 	
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I couldn't hyperimmunize
you couldn't hyperimmunize
he couldn't hyperimmunize
we couldn't hyperimmunize
you couldn't hyperimmunize
they couldn't hyperimmunize 	I couldn't be hyperimmunizing
you couldn't be hyperimmunizing
he couldn't be hyperimmunizing
we couldn't be hyperimmunizing
you couldn't be hyperimmunizing
they couldn't be hyperimmunizing	I couldn't have hyperimmunized
you couldn't have hyperimmunized
he couldn't have hyperimmunized
we couldn't have hyperimmunized
you couldn't have hyperimmunized
they couldn't have hyperimmunized	I couldn't have been hyperimmunizing
you couldn't have been hyperimmunizing
he couldn't have been hyperimmunizing
we couldn't have been hyperimmunizing
you couldn't have been hyperimmunizing
they couldn't have been hyperimmunizing	

Interrogative form 	
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could I hyperimmunize?
could you hyperimmunize?
could he hyperimmunize?
could we hyperimmunize?
could you hyperimmunize?
could they hyperimmunize? 	could I be hyperimmunizing?
could you be hyperimmunizing?
could he be hyperimmunizing?
could we be hyperimmunizing?
could you be hyperimmunizing?
could they be hyperimmunizing? 	could I have hyperimmunized?
could you have hyperimmunized?
could he have hyperimmunized?
could we have hyperimmunized?
could you have hyperimmunized?
could they have hyperimmunized? 	could I have been hyperimmunizing?
could you have been hyperimmunizing?
could he have been hyperimmunizing?
could we have been hyperimmunizing?
could you have been hyperimmunizing?
could they have been hyperimmunizing? 	

Interro-negative form 	
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couldn't I hyperimmunize?
couldn't you hyperimmunize?
couldn't he hyperimmunize?
couldn't we hyperimmunize?
couldn't you hyperimmunize?
couldn't they hyperimmunize? 	couldn't I be hyperimmunizing?
couldn't you be hyperimmunizing?
couldn't he be hyperimmunizing?
couldn't we be hyperimmunizing?
couldn't you be hyperimmunizing?
couldn't they be hyperimmunizing? 	couldn't I have hyperimmunized?
couldn't you have hyperimmunized?
couldn't he have hyperimmunized?
couldn't we have hyperimmunized?
couldn't you have hyperimmunized?
couldn't they have hyperimmunized? 	couldn't I have been hyperimmunizing?
couldn't you have been hyperimmunizing?
couldn't he have been hyperimmunizing?
couldn't we have been hyperimmunizing?
couldn't you have been hyperimmunizing?
couldn't they have been hyperimmunizing?