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