could hyperimmunise
Regular verb: hyperimmunise - hyperimmunised- hyperimmunised

Affirmation 	
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I could hyperimmunise
you could hyperimmunise
he could hyperimmunise
we could hyperimmunise
you could hyperimmunise
they could hyperimmunise 	I could be hyperimmunising
you could be hyperimmunising
he could be hyperimmunising
we could be hyperimmunising
you could be hyperimmunising
they could be hyperimmunising	I could have hyperimmunised
you could have hyperimmunised
he could have hyperimmunised
we could have hyperimmunised
you could have hyperimmunised
they could have hyperimmunised	I could have been hyperimmunising
you could have been hyperimmunising
he could have been hyperimmunising
we could have been hyperimmunising
you could have been hyperimmunising
they could have been hyperimmunising	

Negation 	
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I couldn't hyperimmunise
you couldn't hyperimmunise
he couldn't hyperimmunise
we couldn't hyperimmunise
you couldn't hyperimmunise
they couldn't hyperimmunise 	I couldn't be hyperimmunising
you couldn't be hyperimmunising
he couldn't be hyperimmunising
we couldn't be hyperimmunising
you couldn't be hyperimmunising
they couldn't be hyperimmunising	I couldn't have hyperimmunised
you couldn't have hyperimmunised
he couldn't have hyperimmunised
we couldn't have hyperimmunised
you couldn't have hyperimmunised
they couldn't have hyperimmunised	I couldn't have been hyperimmunising
you couldn't have been hyperimmunising
he couldn't have been hyperimmunising
we couldn't have been hyperimmunising
you couldn't have been hyperimmunising
they couldn't have been hyperimmunising	

Interrogative form 	
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could I hyperimmunise?
could you hyperimmunise?
could he hyperimmunise?
could we hyperimmunise?
could you hyperimmunise?
could they hyperimmunise? 	could I be hyperimmunising?
could you be hyperimmunising?
could he be hyperimmunising?
could we be hyperimmunising?
could you be hyperimmunising?
could they be hyperimmunising? 	could I have hyperimmunised?
could you have hyperimmunised?
could he have hyperimmunised?
could we have hyperimmunised?
could you have hyperimmunised?
could they have hyperimmunised? 	could I have been hyperimmunising?
could you have been hyperimmunising?
could he have been hyperimmunising?
could we have been hyperimmunising?
could you have been hyperimmunising?
could they have been hyperimmunising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hyperimmunise?
couldn't you hyperimmunise?
couldn't he hyperimmunise?
couldn't we hyperimmunise?
couldn't you hyperimmunise?
couldn't they hyperimmunise? 	couldn't I be hyperimmunising?
couldn't you be hyperimmunising?
couldn't he be hyperimmunising?
couldn't we be hyperimmunising?
couldn't you be hyperimmunising?
couldn't they be hyperimmunising? 	couldn't I have hyperimmunised?
couldn't you have hyperimmunised?
couldn't he have hyperimmunised?
couldn't we have hyperimmunised?
couldn't you have hyperimmunised?
couldn't they have hyperimmunised? 	couldn't I have been hyperimmunising?
couldn't you have been hyperimmunising?
couldn't he have been hyperimmunising?
couldn't we have been hyperimmunising?
couldn't you have been hyperimmunising?
couldn't they have been hyperimmunising?