could reschedule
Regular verb: reschedule - rescheduled- rescheduled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could reschedule
you could reschedule
he could reschedule
we could reschedule
you could reschedule
they could reschedule 	I could be rescheduling
you could be rescheduling
he could be rescheduling
we could be rescheduling
you could be rescheduling
they could be rescheduling	I could have rescheduled
you could have rescheduled
he could have rescheduled
we could have rescheduled
you could have rescheduled
they could have rescheduled	I could have been rescheduling
you could have been rescheduling
he could have been rescheduling
we could have been rescheduling
you could have been rescheduling
they could have been rescheduling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't reschedule
you couldn't reschedule
he couldn't reschedule
we couldn't reschedule
you couldn't reschedule
they couldn't reschedule 	I couldn't be rescheduling
you couldn't be rescheduling
he couldn't be rescheduling
we couldn't be rescheduling
you couldn't be rescheduling
they couldn't be rescheduling	I couldn't have rescheduled
you couldn't have rescheduled
he couldn't have rescheduled
we couldn't have rescheduled
you couldn't have rescheduled
they couldn't have rescheduled	I couldn't have been rescheduling
you couldn't have been rescheduling
he couldn't have been rescheduling
we couldn't have been rescheduling
you couldn't have been rescheduling
they couldn't have been rescheduling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I reschedule?
could you reschedule?
could he reschedule?
could we reschedule?
could you reschedule?
could they reschedule? 	could I be rescheduling?
could you be rescheduling?
could he be rescheduling?
could we be rescheduling?
could you be rescheduling?
could they be rescheduling? 	could I have rescheduled?
could you have rescheduled?
could he have rescheduled?
could we have rescheduled?
could you have rescheduled?
could they have rescheduled? 	could I have been rescheduling?
could you have been rescheduling?
could he have been rescheduling?
could we have been rescheduling?
could you have been rescheduling?
could they have been rescheduling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I reschedule?
couldn't you reschedule?
couldn't he reschedule?
couldn't we reschedule?
couldn't you reschedule?
couldn't they reschedule? 	couldn't I be rescheduling?
couldn't you be rescheduling?
couldn't he be rescheduling?
couldn't we be rescheduling?
couldn't you be rescheduling?
couldn't they be rescheduling? 	couldn't I have rescheduled?
couldn't you have rescheduled?
couldn't he have rescheduled?
couldn't we have rescheduled?
couldn't you have rescheduled?
couldn't they have rescheduled? 	couldn't I have been rescheduling?
couldn't you have been rescheduling?
couldn't he have been rescheduling?
couldn't we have been rescheduling?
couldn't you have been rescheduling?
couldn't they have been rescheduling?