English verb conjugation
COULD REBOOK

Regular verb: rebook - rebooked - rebooked

Affirmation

Simple form	V-ing form
I could rebook you could rebook he could rebook we could rebook you could rebook they could rebook	I could be rebooking you could be rebooking he could be rebooking we could be rebooking you could be rebooking they could be rebooking
Perfect	V-ing perfect
I could have rebooked you could have rebooked he could have rebooked we could have rebooked you could have rebooked they could have rebooked	I could have been rebooking you could have been rebooking he could have been rebooking we could have been rebooking you could have been rebooking they could have been rebooking

Negation

Simple form	V-ing form
I couldn't rebook you couldn't rebook he couldn't rebook we couldn't rebook you couldn't rebook they couldn't rebook	I couldn't be rebooking you couldn't be rebooking he couldn't be rebooking we couldn't be rebooking you couldn't be rebooking they couldn't be rebooking
Perfect	V-ing perfect
I couldn't have rebooked you couldn't have rebooked he couldn't have rebooked we couldn't have rebooked you couldn't have rebooked they couldn't have rebooked	I couldn't have been rebooking you couldn't have been rebooking he couldn't have been rebooking we couldn't have been rebooking you couldn't have been rebooking they couldn't have been rebooking

Interrogative form

Simple form	V-ing form
could I rebook? could you rebook? could he rebook? could we rebook? could you rebook? could they rebook?	could I be rebooking? could you be rebooking? could he be rebooking? could we be rebooking? could you be rebooking? could they be rebooking?
Perfect	V-ing perfect
could I have rebooked? could you have rebooked? could he have rebooked? could we have rebooked? could you have rebooked? could they have rebooked?	could I have been rebooking? could you have been rebooking? could he have been rebooking? could we have been rebooking? could you have been rebooking? could they have been rebooking?

Interro-negative form

Simple form	V-ing form
couldn't I rebook? couldn't you rebook? couldn't he rebook? couldn't we rebook? couldn't you rebook? couldn't they rebook?	couldn't I be rebooking? couldn't you be rebooking? couldn't he be rebooking? couldn't we be rebooking? couldn't you be rebooking? couldn't they be rebooking?
Perfect	V-ing perfect
couldn't I have rebooked? couldn't you have rebooked? couldn't he have rebooked? couldn't we have rebooked? couldn't you have rebooked? couldn't they have rebooked?	couldn't I have been rebooking? couldn't you have been rebooking? couldn't he have been rebooking? couldn't we have been rebooking? couldn't you have been rebooking? couldn't they have been rebooking?