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