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 couldn't double-click you couldn't double-click he couldn't double-click we couldn't double-click you couldn't double-click they couldn't double-click
V-ing form
I couldn't be double-clicking you couldn't be double-clicking he couldn't be double-clicking we couldn't be double-clicking you couldn't be double-clicking they couldn't be double-clicking
Perfect
I couldn't have double-clicked you couldn't have double-clicked he couldn't have double-clicked we couldn't have double-clicked you couldn't have double-clicked they couldn't have double-clicked
V-ing perfect
I couldn't have been double-clicking you couldn't have been double-clicking he couldn't have been double-clicking we couldn't have been double-clicking you couldn't have been double-clicking they couldn't 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
couldn't I double-click? couldn't you double-click? couldn't he double-click? couldn't we double-click? couldn't you double-click? couldn't they double-click?
V-ing form
couldn't I be double-clicking? couldn't you be double-clicking? couldn't he be double-clicking? couldn't we be double-clicking? couldn't you be double-clicking? couldn't they be double-clicking?
Perfect
couldn't I have double-clicked? couldn't you have double-clicked? couldn't he have double-clicked? couldn't we have double-clicked? couldn't you have double-clicked? couldn't they have double-clicked?
V-ing perfect
couldn't I have been double-clicking? couldn't you have been double-clicking? couldn't he have been double-clicking? couldn't we have been double-clicking? couldn't you have been double-clicking? couldn't they have been double-clicking?