I can bowel you can bowel he can bowel we can bowel you can bowel they can bowel
V-ing form
I can be boweling you can be boweling he can be boweling we can be boweling you can be boweling they can be boweling
Perfect
I can have boweled you can have boweled he can have boweled we can have boweled you can have boweled they can have boweled
V-ing perfect
I can have been boweling you can have been boweling he can have been boweling we can have been boweling you can have been boweling they can have been boweling
Negation
Simple form
I can't bowel you can't bowel he can't bowel we can't bowel you can't bowel they can't bowel
V-ing form
I can't be boweling you can't be boweling he can't be boweling we can't be boweling you can't be boweling they can't be boweling
Perfect
I can't have boweled you can't have boweled he can't have boweled we can't have boweled you can't have boweled they can't have boweled
V-ing perfect
I can't have been boweling you can't have been boweling he can't have been boweling we can't have been boweling you can't have been boweling they can't have been boweling
Interrogative form
Simple form
can I bowel? can you bowel? can he bowel? can we bowel? can you bowel? can they bowel?
V-ing form
can I be boweling? can you be boweling? can he be boweling? can we be boweling? can you be boweling? can they be boweling?
Perfect
can I have boweled? can you have boweled? can he have boweled? can we have boweled? can you have boweled? can they have boweled?
V-ing perfect
can I have been boweling? can you have been boweling? can he have been boweling? can we have been boweling? can you have been boweling? can they have been boweling?
Interro-negative form
Simple form
can't I bowel? can't you bowel? can't he bowel? can't we bowel? can't you bowel? can't they bowel?
V-ing form
can't I be boweling? can't you be boweling? can't he be boweling? can't we be boweling? can't you be boweling? can't they be boweling?
Perfect
can't I have boweled? can't you have boweled? can't he have boweled? can't we have boweled? can't you have boweled? can't they have boweled?
V-ing perfect
can't I have been boweling? can't you have been boweling? can't he have been boweling? can't we have been boweling? can't you have been boweling? can't they have been boweling?