I could capitulate you could capitulate he could capitulate we could capitulate you could capitulate they could capitulate
V-ing form
I could be capitulating you could be capitulating he could be capitulating we could be capitulating you could be capitulating they could be capitulating
Perfect
I could have capitulated you could have capitulated he could have capitulated we could have capitulated you could have capitulated they could have capitulated
V-ing perfect
I could have been capitulating you could have been capitulating he could have been capitulating we could have been capitulating you could have been capitulating they could have been capitulating
Negation
Simple form
I could not capitulate you could not capitulate he could not capitulate we could not capitulate you could not capitulate they could not capitulate
V-ing form
I could not be capitulating you could not be capitulating he could not be capitulating we could not be capitulating you could not be capitulating they could not be capitulating
Perfect
I could not have capitulated you could not have capitulated he could not have capitulated we could not have capitulated you could not have capitulated they could not have capitulated
V-ing perfect
I could not have been capitulating you could not have been capitulating he could not have been capitulating we could not have been capitulating you could not have been capitulating they could not have been capitulating
Interrogative form
Simple form
could I capitulate? could you capitulate? could he capitulate? could we capitulate? could you capitulate? could they capitulate?
V-ing form
could I be capitulating? could you be capitulating? could he be capitulating? could we be capitulating? could you be capitulating? could they be capitulating?
Perfect
could I have capitulated? could you have capitulated? could he have capitulated? could we have capitulated? could you have capitulated? could they have capitulated?
V-ing perfect
could I have been capitulating? could you have been capitulating? could he have been capitulating? could we have been capitulating? could you have been capitulating? could they have been capitulating?
Interro-negative form
Simple form
could I not capitulate? could you not capitulate? could he not capitulate? could we not capitulate? could you not capitulate? could they not capitulate?
V-ing form
could I not be capitulating? could you not be capitulating? could he not be capitulating? could we not be capitulating? could you not be capitulating? could they not be capitulating?
Perfect
could I not have capitulated? could you not have capitulated? could he not have capitulated? could we not have capitulated? could you not have capitulated? could they not have capitulated?
V-ing perfect
could I not have been capitulating? could you not have been capitulating? could he not have been capitulating? could we not have been capitulating? could you not have been capitulating? could they not have been capitulating?