I can bunk you can bunk she can bunk we can bunk you can bunk they can bunk
V-ing form
I can be bunking you can be bunking she can be bunking we can be bunking you can be bunking they can be bunking
Perfect
I can have bunked you can have bunked she can have bunked we can have bunked you can have bunked they can have bunked
V-ing perfect
I can have been bunking you can have been bunking she can have been bunking we can have been bunking you can have been bunking they can have been bunking
Negation
Simple form
I cannot bunk you cannot bunk she cannot bunk we cannot bunk you cannot bunk they cannot bunk
V-ing form
I cannot be bunking you cannot be bunking she cannot be bunking we cannot be bunking you cannot be bunking they cannot be bunking
Perfect
I cannot have bunked you cannot have bunked she cannot have bunked we cannot have bunked you cannot have bunked they cannot have bunked
V-ing perfect
I cannot have been bunking you cannot have been bunking she cannot have been bunking we cannot have been bunking you cannot have been bunking they cannot have been bunking
Interrogative form
Simple form
can I bunk? can you bunk? can she bunk? can we bunk? can you bunk? can they bunk?
V-ing form
can I be bunking? can you be bunking? can she be bunking? can we be bunking? can you be bunking? can they be bunking?
Perfect
can I have bunked? can you have bunked? can she have bunked? can we have bunked? can you have bunked? can they have bunked?
V-ing perfect
can I have been bunking? can you have been bunking? can she have been bunking? can we have been bunking? can you have been bunking? can they have been bunking?
Interro-negative form
Simple form
can I not bunk? can you not bunk? can she not bunk? can we not bunk? can you not bunk? can they not bunk?
V-ing form
can I not be bunking? can you not be bunking? can she not be bunking? can we not be bunking? can you not be bunking? can they not be bunking?
Perfect
can I not have bunked? can you not have bunked? can she not have bunked? can we not have bunked? can you not have bunked? can they not have bunked?
V-ing perfect
can I not have been bunking? can you not have been bunking? can she not have been bunking? can we not have been bunking? can you not have been bunking? can they not have been bunking?