I can regiment you can regiment he can regiment we can regiment you can regiment they can regiment
V-ing form
I can be regimenting you can be regimenting he can be regimenting we can be regimenting you can be regimenting they can be regimenting
Perfect
I can have regimented you can have regimented he can have regimented we can have regimented you can have regimented they can have regimented
V-ing perfect
I can have been regimenting you can have been regimenting he can have been regimenting we can have been regimenting you can have been regimenting they can have been regimenting
Negation
Simple form
I can't regiment you can't regiment he can't regiment we can't regiment you can't regiment they can't regiment
V-ing form
I can't be regimenting you can't be regimenting he can't be regimenting we can't be regimenting you can't be regimenting they can't be regimenting
Perfect
I can't have regimented you can't have regimented he can't have regimented we can't have regimented you can't have regimented they can't have regimented
V-ing perfect
I can't have been regimenting you can't have been regimenting he can't have been regimenting we can't have been regimenting you can't have been regimenting they can't have been regimenting
Interrogative form
Simple form
can I regiment? can you regiment? can he regiment? can we regiment? can you regiment? can they regiment?
V-ing form
can I be regimenting? can you be regimenting? can he be regimenting? can we be regimenting? can you be regimenting? can they be regimenting?
Perfect
can I have regimented? can you have regimented? can he have regimented? can we have regimented? can you have regimented? can they have regimented?
V-ing perfect
can I have been regimenting? can you have been regimenting? can he have been regimenting? can we have been regimenting? can you have been regimenting? can they have been regimenting?
Interro-negative form
Simple form
can't I regiment? can't you regiment? can't he regiment? can't we regiment? can't you regiment? can't they regiment?
V-ing form
can't I be regimenting? can't you be regimenting? can't he be regimenting? can't we be regimenting? can't you be regimenting? can't they be regimenting?
Perfect
can't I have regimented? can't you have regimented? can't he have regimented? can't we have regimented? can't you have regimented? can't they have regimented?
V-ing perfect
can't I have been regimenting? can't you have been regimenting? can't he have been regimenting? can't we have been regimenting? can't you have been regimenting? can't they have been regimenting?