I could flirt you could flirt she could flirt we could flirt you could flirt they could flirt
V-ing form
I could be flirting you could be flirting she could be flirting we could be flirting you could be flirting they could be flirting
Perfect
I could have flirted you could have flirted she could have flirted we could have flirted you could have flirted they could have flirted
V-ing perfect
I could have been flirting you could have been flirting she could have been flirting we could have been flirting you could have been flirting they could have been flirting
Negation
Simple form
I could not flirt you could not flirt she could not flirt we could not flirt you could not flirt they could not flirt
V-ing form
I could not be flirting you could not be flirting she could not be flirting we could not be flirting you could not be flirting they could not be flirting
Perfect
I could not have flirted you could not have flirted she could not have flirted we could not have flirted you could not have flirted they could not have flirted
V-ing perfect
I could not have been flirting you could not have been flirting she could not have been flirting we could not have been flirting you could not have been flirting they could not have been flirting
Interrogative form
Simple form
could I flirt? could you flirt? could she flirt? could we flirt? could you flirt? could they flirt?
V-ing form
could I be flirting? could you be flirting? could she be flirting? could we be flirting? could you be flirting? could they be flirting?
Perfect
could I have flirted? could you have flirted? could she have flirted? could we have flirted? could you have flirted? could they have flirted?
V-ing perfect
could I have been flirting? could you have been flirting? could she have been flirting? could we have been flirting? could you have been flirting? could they have been flirting?
Interro-negative form
Simple form
could I not flirt? could you not flirt? could she not flirt? could we not flirt? could you not flirt? could they not flirt?
V-ing form
could I not be flirting? could you not be flirting? could she not be flirting? could we not be flirting? could you not be flirting? could they not be flirting?
Perfect
could I not have flirted? could you not have flirted? could she not have flirted? could we not have flirted? could you not have flirted? could they not have flirted?
V-ing perfect
could I not have been flirting? could you not have been flirting? could she not have been flirting? could we not have been flirting? could you not have been flirting? could they not have been flirting?