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 could not local you could not local he could not local we could not local you could not local they could not local
V-ing form
I could not be localing you could not be localing he could not be localing we could not be localing you could not be localing they could not be localing
Perfect
I could not have localed you could not have localed he could not have localed we could not have localed you could not have localed they could not have localed
V-ing perfect
I could not have been localing you could not have been localing he could not have been localing we could not have been localing you could not have been localing they could not 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
could I not local? could you not local? could he not local? could we not local? could you not local? could they not local?
V-ing form
could I not be localing? could you not be localing? could he not be localing? could we not be localing? could you not be localing? could they not be localing?
Perfect
could I not have localed? could you not have localed? could he not have localed? could we not have localed? could you not have localed? could they not have localed?
V-ing perfect
could I not have been localing? could you not have been localing? could he not have been localing? could we not have been localing? could you not have been localing? could they not have been localing?