I could double-click you could double-click he could double-click we could double-click you could double-click they could double-click
V-ing form
I could be double-clicking you could be double-clicking he could be double-clicking we could be double-clicking you could be double-clicking they could be double-clicking
Perfect
I could have double-clicked you could have double-clicked he could have double-clicked we could have double-clicked you could have double-clicked they could have double-clicked
V-ing perfect
I could have been double-clicking you could have been double-clicking he could have been double-clicking we could have been double-clicking you could have been double-clicking they could have been double-clicking
Negation
Simple form
I could not double-click you could not double-click he could not double-click we could not double-click you could not double-click they could not double-click
V-ing form
I could not be double-clicking you could not be double-clicking he could not be double-clicking we could not be double-clicking you could not be double-clicking they could not be double-clicking
Perfect
I could not have double-clicked you could not have double-clicked he could not have double-clicked we could not have double-clicked you could not have double-clicked they could not have double-clicked
V-ing perfect
I could not have been double-clicking you could not have been double-clicking he could not have been double-clicking we could not have been double-clicking you could not have been double-clicking they could not have been double-clicking
Interrogative form
Simple form
could I double-click? could you double-click? could he double-click? could we double-click? could you double-click? could they double-click?
V-ing form
could I be double-clicking? could you be double-clicking? could he be double-clicking? could we be double-clicking? could you be double-clicking? could they be double-clicking?
Perfect
could I have double-clicked? could you have double-clicked? could he have double-clicked? could we have double-clicked? could you have double-clicked? could they have double-clicked?
V-ing perfect
could I have been double-clicking? could you have been double-clicking? could he have been double-clicking? could we have been double-clicking? could you have been double-clicking? could they have been double-clicking?
Interro-negative form
Simple form
could I not double-click? could you not double-click? could he not double-click? could we not double-click? could you not double-click? could they not double-click?
V-ing form
could I not be double-clicking? could you not be double-clicking? could he not be double-clicking? could we not be double-clicking? could you not be double-clicking? could they not be double-clicking?
Perfect
could I not have double-clicked? could you not have double-clicked? could he not have double-clicked? could we not have double-clicked? could you not have double-clicked? could they not have double-clicked?
V-ing perfect
could I not have been double-clicking? could you not have been double-clicking? could he not have been double-clicking? could we not have been double-clicking? could you not have been double-clicking? could they not have been double-clicking?