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