I can bellow you can bellow he can bellow we can bellow you can bellow they can bellow
V-ing form
I can be bellowing you can be bellowing he can be bellowing we can be bellowing you can be bellowing they can be bellowing
Perfect
I can have bellowed you can have bellowed he can have bellowed we can have bellowed you can have bellowed they can have bellowed
V-ing perfect
I can have been bellowing you can have been bellowing he can have been bellowing we can have been bellowing you can have been bellowing they can have been bellowing
Negation
Simple form
I cannot bellow you cannot bellow he cannot bellow we cannot bellow you cannot bellow they cannot bellow
V-ing form
I cannot be bellowing you cannot be bellowing he cannot be bellowing we cannot be bellowing you cannot be bellowing they cannot be bellowing
Perfect
I cannot have bellowed you cannot have bellowed he cannot have bellowed we cannot have bellowed you cannot have bellowed they cannot have bellowed
V-ing perfect
I cannot have been bellowing you cannot have been bellowing he cannot have been bellowing we cannot have been bellowing you cannot have been bellowing they cannot have been bellowing
Interrogative form
Simple form
can I bellow? can you bellow? can he bellow? can we bellow? can you bellow? can they bellow?
V-ing form
can I be bellowing? can you be bellowing? can he be bellowing? can we be bellowing? can you be bellowing? can they be bellowing?
Perfect
can I have bellowed? can you have bellowed? can he have bellowed? can we have bellowed? can you have bellowed? can they have bellowed?
V-ing perfect
can I have been bellowing? can you have been bellowing? can he have been bellowing? can we have been bellowing? can you have been bellowing? can they have been bellowing?
Interro-negative form
Simple form
can I not bellow? can you not bellow? can he not bellow? can we not bellow? can you not bellow? can they not bellow?
V-ing form
can I not be bellowing? can you not be bellowing? can he not be bellowing? can we not be bellowing? can you not be bellowing? can they not be bellowing?
Perfect
can I not have bellowed? can you not have bellowed? can he not have bellowed? can we not have bellowed? can you not have bellowed? can they not have bellowed?
V-ing perfect
can I not have been bellowing? can you not have been bellowing? can he not have been bellowing? can we not have been bellowing? can you not have been bellowing? can they not have been bellowing?