could capitulate
Regular verb: capitulate - capitulated- capitulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could capitulate
you could capitulate
she could capitulate
we could capitulate
you could capitulate
they could capitulate 	I could be capitulating
you could be capitulating
she could be capitulating
we could be capitulating
you could be capitulating
they could be capitulating	I could have capitulated
you could have capitulated
she could have capitulated
we could have capitulated
you could have capitulated
they could have capitulated	I could have been capitulating
you could have been capitulating
she could have been capitulating
we could have been capitulating
you could have been capitulating
they could have been capitulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't capitulate
you couldn't capitulate
she couldn't capitulate
we couldn't capitulate
you couldn't capitulate
they couldn't capitulate 	I couldn't be capitulating
you couldn't be capitulating
she couldn't be capitulating
we couldn't be capitulating
you couldn't be capitulating
they couldn't be capitulating	I couldn't have capitulated
you couldn't have capitulated
she couldn't have capitulated
we couldn't have capitulated
you couldn't have capitulated
they couldn't have capitulated	I couldn't have been capitulating
you couldn't have been capitulating
she couldn't have been capitulating
we couldn't have been capitulating
you couldn't have been capitulating
they couldn't have been capitulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I capitulate?
could you capitulate?
could she capitulate?
could we capitulate?
could you capitulate?
could they capitulate? 	could I be capitulating?
could you be capitulating?
could she be capitulating?
could we be capitulating?
could you be capitulating?
could they be capitulating? 	could I have capitulated?
could you have capitulated?
could she have capitulated?
could we have capitulated?
could you have capitulated?
could they have capitulated? 	could I have been capitulating?
could you have been capitulating?
could she have been capitulating?
could we have been capitulating?
could you have been capitulating?
could they have been capitulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I capitulate?
couldn't you capitulate?
couldn't she capitulate?
couldn't we capitulate?
couldn't you capitulate?
couldn't they capitulate? 	couldn't I be capitulating?
couldn't you be capitulating?
couldn't she be capitulating?
couldn't we be capitulating?
couldn't you be capitulating?
couldn't they be capitulating? 	couldn't I have capitulated?
couldn't you have capitulated?
couldn't she have capitulated?
couldn't we have capitulated?
couldn't you have capitulated?
couldn't they have capitulated? 	couldn't I have been capitulating?
couldn't you have been capitulating?
couldn't she have been capitulating?
couldn't we have been capitulating?
couldn't you have been capitulating?
couldn't they have been capitulating?