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