I could bushwack you could bushwack she could bushwack we could bushwack you could bushwack they could bushwack
V-ing form
I could be bushwacking you could be bushwacking she could be bushwacking we could be bushwacking you could be bushwacking they could be bushwacking
Perfect
I could have bushwacked you could have bushwacked she could have bushwacked we could have bushwacked you could have bushwacked they could have bushwacked
V-ing perfect
I could have been bushwacking you could have been bushwacking she could have been bushwacking we could have been bushwacking you could have been bushwacking they could have been bushwacking
Negation
Simple form
I couldn't bushwack you couldn't bushwack she couldn't bushwack we couldn't bushwack you couldn't bushwack they couldn't bushwack
V-ing form
I couldn't be bushwacking you couldn't be bushwacking she couldn't be bushwacking we couldn't be bushwacking you couldn't be bushwacking they couldn't be bushwacking
Perfect
I couldn't have bushwacked you couldn't have bushwacked she couldn't have bushwacked we couldn't have bushwacked you couldn't have bushwacked they couldn't have bushwacked
V-ing perfect
I couldn't have been bushwacking you couldn't have been bushwacking she couldn't have been bushwacking we couldn't have been bushwacking you couldn't have been bushwacking they couldn't have been bushwacking
Interrogative form
Simple form
could I bushwack? could you bushwack? could she bushwack? could we bushwack? could you bushwack? could they bushwack?
V-ing form
could I be bushwacking? could you be bushwacking? could she be bushwacking? could we be bushwacking? could you be bushwacking? could they be bushwacking?
Perfect
could I have bushwacked? could you have bushwacked? could she have bushwacked? could we have bushwacked? could you have bushwacked? could they have bushwacked?
V-ing perfect
could I have been bushwacking? could you have been bushwacking? could she have been bushwacking? could we have been bushwacking? could you have been bushwacking? could they have been bushwacking?
Interro-negative form
Simple form
couldn't I bushwack? couldn't you bushwack? couldn't she bushwack? couldn't we bushwack? couldn't you bushwack? couldn't they bushwack?
V-ing form
couldn't I be bushwacking? couldn't you be bushwacking? couldn't she be bushwacking? couldn't we be bushwacking? couldn't you be bushwacking? couldn't they be bushwacking?
Perfect
couldn't I have bushwacked? couldn't you have bushwacked? couldn't she have bushwacked? couldn't we have bushwacked? couldn't you have bushwacked? couldn't they have bushwacked?
V-ing perfect
couldn't I have been bushwacking? couldn't you have been bushwacking? couldn't she have been bushwacking? couldn't we have been bushwacking? couldn't you have been bushwacking? couldn't they have been bushwacking?