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