I could decorticate you could decorticate he could decorticate we could decorticate you could decorticate they could decorticate
V-ing form
I could be decorticating you could be decorticating he could be decorticating we could be decorticating you could be decorticating they could be decorticating
Perfect
I could have decorticated you could have decorticated he could have decorticated we could have decorticated you could have decorticated they could have decorticated
V-ing perfect
I could have been decorticating you could have been decorticating he could have been decorticating we could have been decorticating you could have been decorticating they could have been decorticating
Negation
Simple form
I could not decorticate you could not decorticate he could not decorticate we could not decorticate you could not decorticate they could not decorticate
V-ing form
I could not be decorticating you could not be decorticating he could not be decorticating we could not be decorticating you could not be decorticating they could not be decorticating
Perfect
I could not have decorticated you could not have decorticated he could not have decorticated we could not have decorticated you could not have decorticated they could not have decorticated
V-ing perfect
I could not have been decorticating you could not have been decorticating he could not have been decorticating we could not have been decorticating you could not have been decorticating they could not have been decorticating
Interrogative form
Simple form
could I decorticate? could you decorticate? could he decorticate? could we decorticate? could you decorticate? could they decorticate?
V-ing form
could I be decorticating? could you be decorticating? could he be decorticating? could we be decorticating? could you be decorticating? could they be decorticating?
Perfect
could I have decorticated? could you have decorticated? could he have decorticated? could we have decorticated? could you have decorticated? could they have decorticated?
V-ing perfect
could I have been decorticating? could you have been decorticating? could he have been decorticating? could we have been decorticating? could you have been decorticating? could they have been decorticating?
Interro-negative form
Simple form
could I not decorticate? could you not decorticate? could he not decorticate? could we not decorticate? could you not decorticate? could they not decorticate?
V-ing form
could I not be decorticating? could you not be decorticating? could he not be decorticating? could we not be decorticating? could you not be decorticating? could they not be decorticating?
Perfect
could I not have decorticated? could you not have decorticated? could he not have decorticated? could we not have decorticated? could you not have decorticated? could they not have decorticated?
V-ing perfect
could I not have been decorticating? could you not have been decorticating? could he not have been decorticating? could we not have been decorticating? could you not have been decorticating? could they not have been decorticating?