could interhybridize
Regular verb: interhybridize - interhybridized- interhybridized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could interhybridize
you could interhybridize
he could interhybridize
we could interhybridize
you could interhybridize
they could interhybridize 	I could be interhybridizing
you could be interhybridizing
he could be interhybridizing
we could be interhybridizing
you could be interhybridizing
they could be interhybridizing	I could have interhybridized
you could have interhybridized
he could have interhybridized
we could have interhybridized
you could have interhybridized
they could have interhybridized	I could have been interhybridizing
you could have been interhybridizing
he could have been interhybridizing
we could have been interhybridizing
you could have been interhybridizing
they could have been interhybridizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't interhybridize
you couldn't interhybridize
he couldn't interhybridize
we couldn't interhybridize
you couldn't interhybridize
they couldn't interhybridize 	I couldn't be interhybridizing
you couldn't be interhybridizing
he couldn't be interhybridizing
we couldn't be interhybridizing
you couldn't be interhybridizing
they couldn't be interhybridizing	I couldn't have interhybridized
you couldn't have interhybridized
he couldn't have interhybridized
we couldn't have interhybridized
you couldn't have interhybridized
they couldn't have interhybridized	I couldn't have been interhybridizing
you couldn't have been interhybridizing
he couldn't have been interhybridizing
we couldn't have been interhybridizing
you couldn't have been interhybridizing
they couldn't have been interhybridizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I interhybridize?
could you interhybridize?
could he interhybridize?
could we interhybridize?
could you interhybridize?
could they interhybridize? 	could I be interhybridizing?
could you be interhybridizing?
could he be interhybridizing?
could we be interhybridizing?
could you be interhybridizing?
could they be interhybridizing? 	could I have interhybridized?
could you have interhybridized?
could he have interhybridized?
could we have interhybridized?
could you have interhybridized?
could they have interhybridized? 	could I have been interhybridizing?
could you have been interhybridizing?
could he have been interhybridizing?
could we have been interhybridizing?
could you have been interhybridizing?
could they have been interhybridizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I interhybridize?
couldn't you interhybridize?
couldn't he interhybridize?
couldn't we interhybridize?
couldn't you interhybridize?
couldn't they interhybridize? 	couldn't I be interhybridizing?
couldn't you be interhybridizing?
couldn't he be interhybridizing?
couldn't we be interhybridizing?
couldn't you be interhybridizing?
couldn't they be interhybridizing? 	couldn't I have interhybridized?
couldn't you have interhybridized?
couldn't he have interhybridized?
couldn't we have interhybridized?
couldn't you have interhybridized?
couldn't they have interhybridized? 	couldn't I have been interhybridizing?
couldn't you have been interhybridizing?
couldn't he have been interhybridizing?
couldn't we have been interhybridizing?
couldn't you have been interhybridizing?
couldn't they have been interhybridizing?