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 could not accord you could not accord he could not accord we could not accord you could not accord they could not accord
V-ing form
I could not be according you could not be according he could not be according we could not be according you could not be according they could not be according
Perfect
I could not have accorded you could not have accorded he could not have accorded we could not have accorded you could not have accorded they could not have accorded
V-ing perfect
I could not have been according you could not have been according he could not have been according we could not have been according you could not have been according they could not 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
could I not accord? could you not accord? could he not accord? could we not accord? could you not accord? could they not accord?
V-ing form
could I not be according? could you not be according? could he not be according? could we not be according? could you not be according? could they not be according?
Perfect
could I not have accorded? could you not have accorded? could he not have accorded? could we not have accorded? could you not have accorded? could they not have accorded?
V-ing perfect
could I not have been according? could you not have been according? could he not have been according? could we not have been according? could you not have been according? could they not have been according?