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 can't bunk you can't bunk she can't bunk we can't bunk you can't bunk they can't bunk
V-ing form
I can't be bunking you can't be bunking she can't be bunking we can't be bunking you can't be bunking they can't be bunking
Perfect
I can't have bunked you can't have bunked she can't have bunked we can't have bunked you can't have bunked they can't have bunked
V-ing perfect
I can't have been bunking you can't have been bunking she can't have been bunking we can't have been bunking you can't have been bunking they can't 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't I bunk? can't you bunk? can't she bunk? can't we bunk? can't you bunk? can't they bunk?
V-ing form
can't I be bunking? can't you be bunking? can't she be bunking? can't we be bunking? can't you be bunking? can't they be bunking?
Perfect
can't I have bunked? can't you have bunked? can't she have bunked? can't we have bunked? can't you have bunked? can't they have bunked?
V-ing perfect
can't I have been bunking? can't you have been bunking? can't she have been bunking? can't we have been bunking? can't you have been bunking? can't they have been bunking?