I can cheapen you can cheapen he can cheapen we can cheapen you can cheapen they can cheapen
V-ing form
I can be cheapening you can be cheapening he can be cheapening we can be cheapening you can be cheapening they can be cheapening
Perfect
I can have cheapened you can have cheapened he can have cheapened we can have cheapened you can have cheapened they can have cheapened
V-ing perfect
I can have been cheapening you can have been cheapening he can have been cheapening we can have been cheapening you can have been cheapening they can have been cheapening
Negation
Simple form
I can't cheapen you can't cheapen he can't cheapen we can't cheapen you can't cheapen they can't cheapen
V-ing form
I can't be cheapening you can't be cheapening he can't be cheapening we can't be cheapening you can't be cheapening they can't be cheapening
Perfect
I can't have cheapened you can't have cheapened he can't have cheapened we can't have cheapened you can't have cheapened they can't have cheapened
V-ing perfect
I can't have been cheapening you can't have been cheapening he can't have been cheapening we can't have been cheapening you can't have been cheapening they can't have been cheapening
Interrogative form
Simple form
can I cheapen? can you cheapen? can he cheapen? can we cheapen? can you cheapen? can they cheapen?
V-ing form
can I be cheapening? can you be cheapening? can he be cheapening? can we be cheapening? can you be cheapening? can they be cheapening?
Perfect
can I have cheapened? can you have cheapened? can he have cheapened? can we have cheapened? can you have cheapened? can they have cheapened?
V-ing perfect
can I have been cheapening? can you have been cheapening? can he have been cheapening? can we have been cheapening? can you have been cheapening? can they have been cheapening?
Interro-negative form
Simple form
can't I cheapen? can't you cheapen? can't he cheapen? can't we cheapen? can't you cheapen? can't they cheapen?
V-ing form
can't I be cheapening? can't you be cheapening? can't he be cheapening? can't we be cheapening? can't you be cheapening? can't they be cheapening?
Perfect
can't I have cheapened? can't you have cheapened? can't he have cheapened? can't we have cheapened? can't you have cheapened? can't they have cheapened?
V-ing perfect
can't I have been cheapening? can't you have been cheapening? can't he have been cheapening? can't we have been cheapening? can't you have been cheapening? can't they have been cheapening?