I can bunch you can bunch he can bunch we can bunch you can bunch they can bunch
V-ing form
I can be bunching you can be bunching he can be bunching we can be bunching you can be bunching they can be bunching
Perfect
I can have bunched you can have bunched he can have bunched we can have bunched you can have bunched they can have bunched
V-ing perfect
I can have been bunching you can have been bunching he can have been bunching we can have been bunching you can have been bunching they can have been bunching
Negation
Simple form
I can't bunch you can't bunch he can't bunch we can't bunch you can't bunch they can't bunch
V-ing form
I can't be bunching you can't be bunching he can't be bunching we can't be bunching you can't be bunching they can't be bunching
Perfect
I can't have bunched you can't have bunched he can't have bunched we can't have bunched you can't have bunched they can't have bunched
V-ing perfect
I can't have been bunching you can't have been bunching he can't have been bunching we can't have been bunching you can't have been bunching they can't have been bunching
Interrogative form
Simple form
can I bunch? can you bunch? can he bunch? can we bunch? can you bunch? can they bunch?
V-ing form
can I be bunching? can you be bunching? can he be bunching? can we be bunching? can you be bunching? can they be bunching?
Perfect
can I have bunched? can you have bunched? can he have bunched? can we have bunched? can you have bunched? can they have bunched?
V-ing perfect
can I have been bunching? can you have been bunching? can he have been bunching? can we have been bunching? can you have been bunching? can they have been bunching?
Interro-negative form
Simple form
can't I bunch? can't you bunch? can't he bunch? can't we bunch? can't you bunch? can't they bunch?
V-ing form
can't I be bunching? can't you be bunching? can't he be bunching? can't we be bunching? can't you be bunching? can't they be bunching?
Perfect
can't I have bunched? can't you have bunched? can't he have bunched? can't we have bunched? can't you have bunched? can't they have bunched?
V-ing perfect
can't I have been bunching? can't you have been bunching? can't he have been bunching? can't we have been bunching? can't you have been bunching? can't they have been bunching?