could have to
Regular verb: have to - have toed- have toed

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could have to
you could have to
he could have to
we could have to
you could have to
they could have to 	I could be have toing
you could be have toing
he could be have toing
we could be have toing
you could be have toing
they could be have toing	I could have have toed
you could have have toed
he could have have toed
we could have have toed
you could have have toed
they could have have toed	I could have been have toing
you could have been have toing
he could have been have toing
we could have been have toing
you could have been have toing
they could have been have toing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't have to
you couldn't have to
he couldn't have to
we couldn't have to
you couldn't have to
they couldn't have to 	I couldn't be have toing
you couldn't be have toing
he couldn't be have toing
we couldn't be have toing
you couldn't be have toing
they couldn't be have toing	I couldn't have have toed
you couldn't have have toed
he couldn't have have toed
we couldn't have have toed
you couldn't have have toed
they couldn't have have toed	I couldn't have been have toing
you couldn't have been have toing
he couldn't have been have toing
we couldn't have been have toing
you couldn't have been have toing
they couldn't have been have toing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I have to?
could you have to?
could he have to?
could we have to?
could you have to?
could they have to? 	could I be have toing?
could you be have toing?
could he be have toing?
could we be have toing?
could you be have toing?
could they be have toing? 	could I have have toed?
could you have have toed?
could he have have toed?
could we have have toed?
could you have have toed?
could they have have toed? 	could I have been have toing?
could you have been have toing?
could he have been have toing?
could we have been have toing?
could you have been have toing?
could they have been have toing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I have to?
couldn't you have to?
couldn't he have to?
couldn't we have to?
couldn't you have to?
couldn't they have to? 	couldn't I be have toing?
couldn't you be have toing?
couldn't he be have toing?
couldn't we be have toing?
couldn't you be have toing?
couldn't they be have toing? 	couldn't I have have toed?
couldn't you have have toed?
couldn't he have have toed?
couldn't we have have toed?
couldn't you have have toed?
couldn't they have have toed? 	couldn't I have been have toing?
couldn't you have been have toing?
couldn't he have been have toing?
couldn't we have been have toing?
couldn't you have been have toing?
couldn't they have been have toing?