could debone
Regular verb: debone - deboned- deboned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could debone
you could debone
he could debone
we could debone
you could debone
they could debone 	I could be deboning
you could be deboning
he could be deboning
we could be deboning
you could be deboning
they could be deboning	I could have deboned
you could have deboned
he could have deboned
we could have deboned
you could have deboned
they could have deboned	I could have been deboning
you could have been deboning
he could have been deboning
we could have been deboning
you could have been deboning
they could have been deboning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't debone
you couldn't debone
he couldn't debone
we couldn't debone
you couldn't debone
they couldn't debone 	I couldn't be deboning
you couldn't be deboning
he couldn't be deboning
we couldn't be deboning
you couldn't be deboning
they couldn't be deboning	I couldn't have deboned
you couldn't have deboned
he couldn't have deboned
we couldn't have deboned
you couldn't have deboned
they couldn't have deboned	I couldn't have been deboning
you couldn't have been deboning
he couldn't have been deboning
we couldn't have been deboning
you couldn't have been deboning
they couldn't have been deboning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I debone?
could you debone?
could he debone?
could we debone?
could you debone?
could they debone? 	could I be deboning?
could you be deboning?
could he be deboning?
could we be deboning?
could you be deboning?
could they be deboning? 	could I have deboned?
could you have deboned?
could he have deboned?
could we have deboned?
could you have deboned?
could they have deboned? 	could I have been deboning?
could you have been deboning?
could he have been deboning?
could we have been deboning?
could you have been deboning?
could they have been deboning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I debone?
couldn't you debone?
couldn't he debone?
couldn't we debone?
couldn't you debone?
couldn't they debone? 	couldn't I be deboning?
couldn't you be deboning?
couldn't he be deboning?
couldn't we be deboning?
couldn't you be deboning?
couldn't they be deboning? 	couldn't I have deboned?
couldn't you have deboned?
couldn't he have deboned?
couldn't we have deboned?
couldn't you have deboned?
couldn't they have deboned? 	couldn't I have been deboning?
couldn't you have been deboning?
couldn't he have been deboning?
couldn't we have been deboning?
couldn't you have been deboning?
couldn't they have been deboning?