I could rehang you could rehang he could rehang we could rehang you could rehang they could rehang
V-ing form
I could be rehanging you could be rehanging he could be rehanging we could be rehanging you could be rehanging they could be rehanging
Perfect
I could have rehang you could have rehang he could have rehang we could have rehang you could have rehang they could have rehang
V-ing perfect
I could have been rehanging you could have been rehanging he could have been rehanging we could have been rehanging you could have been rehanging they could have been rehanging
Negation
Simple form
I couldn't rehang you couldn't rehang he couldn't rehang we couldn't rehang you couldn't rehang they couldn't rehang
V-ing form
I couldn't be rehanging you couldn't be rehanging he couldn't be rehanging we couldn't be rehanging you couldn't be rehanging they couldn't be rehanging
Perfect
I couldn't have rehang you couldn't have rehang he couldn't have rehang we couldn't have rehang you couldn't have rehang they couldn't have rehang
V-ing perfect
I couldn't have been rehanging you couldn't have been rehanging he couldn't have been rehanging we couldn't have been rehanging you couldn't have been rehanging they couldn't have been rehanging
Interrogative form
Simple form
could I rehang? could you rehang? could he rehang? could we rehang? could you rehang? could they rehang?
V-ing form
could I be rehanging? could you be rehanging? could he be rehanging? could we be rehanging? could you be rehanging? could they be rehanging?
Perfect
could I have rehang? could you have rehang? could he have rehang? could we have rehang? could you have rehang? could they have rehang?
V-ing perfect
could I have been rehanging? could you have been rehanging? could he have been rehanging? could we have been rehanging? could you have been rehanging? could they have been rehanging?
Interro-negative form
Simple form
couldn't I rehang? couldn't you rehang? couldn't he rehang? couldn't we rehang? couldn't you rehang? couldn't they rehang?
V-ing form
couldn't I be rehanging? couldn't you be rehanging? couldn't he be rehanging? couldn't we be rehanging? couldn't you be rehanging? couldn't they be rehanging?
Perfect
couldn't I have rehang? couldn't you have rehang? couldn't he have rehang? couldn't we have rehang? couldn't you have rehang? couldn't they have rehang?
V-ing perfect
couldn't I have been rehanging? couldn't you have been rehanging? couldn't he have been rehanging? couldn't we have been rehanging? couldn't you have been rehanging? couldn't they have been rehanging?