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