I could double-park you could double-park she could double-park we could double-park you could double-park they could double-park
V-ing form
I could be double-parking you could be double-parking she could be double-parking we could be double-parking you could be double-parking they could be double-parking
Perfect
I could have double-parked you could have double-parked she could have double-parked we could have double-parked you could have double-parked they could have double-parked
V-ing perfect
I could have been double-parking you could have been double-parking she could have been double-parking we could have been double-parking you could have been double-parking they could have been double-parking
Negation
Simple form
I could not double-park you could not double-park she could not double-park we could not double-park you could not double-park they could not double-park
V-ing form
I could not be double-parking you could not be double-parking she could not be double-parking we could not be double-parking you could not be double-parking they could not be double-parking
Perfect
I could not have double-parked you could not have double-parked she could not have double-parked we could not have double-parked you could not have double-parked they could not have double-parked
V-ing perfect
I could not have been double-parking you could not have been double-parking she could not have been double-parking we could not have been double-parking you could not have been double-parking they could not have been double-parking
Interrogative form
Simple form
could I double-park? could you double-park? could she double-park? could we double-park? could you double-park? could they double-park?
V-ing form
could I be double-parking? could you be double-parking? could she be double-parking? could we be double-parking? could you be double-parking? could they be double-parking?
Perfect
could I have double-parked? could you have double-parked? could she have double-parked? could we have double-parked? could you have double-parked? could they have double-parked?
V-ing perfect
could I have been double-parking? could you have been double-parking? could she have been double-parking? could we have been double-parking? could you have been double-parking? could they have been double-parking?
Interro-negative form
Simple form
could I not double-park? could you not double-park? could she not double-park? could we not double-park? could you not double-park? could they not double-park?
V-ing form
could I not be double-parking? could you not be double-parking? could she not be double-parking? could we not be double-parking? could you not be double-parking? could they not be double-parking?
Perfect
could I not have double-parked? could you not have double-parked? could she not have double-parked? could we not have double-parked? could you not have double-parked? could they not have double-parked?
V-ing perfect
could I not have been double-parking? could you not have been double-parking? could she not have been double-parking? could we not have been double-parking? could you not have been double-parking? could they not have been double-parking?