I can bop you can bop he can bop we can bop you can bop they can bop
V-ing form
I can be boping you can be boping he can be boping we can be boping you can be boping they can be boping
Perfect
I can have boped you can have boped he can have boped we can have boped you can have boped they can have boped
V-ing perfect
I can have been boping you can have been boping he can have been boping we can have been boping you can have been boping they can have been boping
Negation
Simple form
I can't bop you can't bop he can't bop we can't bop you can't bop they can't bop
V-ing form
I can't be boping you can't be boping he can't be boping we can't be boping you can't be boping they can't be boping
Perfect
I can't have boped you can't have boped he can't have boped we can't have boped you can't have boped they can't have boped
V-ing perfect
I can't have been boping you can't have been boping he can't have been boping we can't have been boping you can't have been boping they can't have been boping
Interrogative form
Simple form
can I bop? can you bop? can he bop? can we bop? can you bop? can they bop?
V-ing form
can I be boping? can you be boping? can he be boping? can we be boping? can you be boping? can they be boping?
Perfect
can I have boped? can you have boped? can he have boped? can we have boped? can you have boped? can they have boped?
V-ing perfect
can I have been boping? can you have been boping? can he have been boping? can we have been boping? can you have been boping? can they have been boping?
Interro-negative form
Simple form
can't I bop? can't you bop? can't he bop? can't we bop? can't you bop? can't they bop?
V-ing form
can't I be boping? can't you be boping? can't he be boping? can't we be boping? can't you be boping? can't they be boping?
Perfect
can't I have boped? can't you have boped? can't he have boped? can't we have boped? can't you have boped? can't they have boped?
V-ing perfect
can't I have been boping? can't you have been boping? can't he have been boping? can't we have been boping? can't you have been boping? can't they have been boping?