I can photocopy you can photocopy he can photocopy we can photocopy you can photocopy they can photocopy
V-ing form
I can be photocopying you can be photocopying he can be photocopying we can be photocopying you can be photocopying they can be photocopying
Perfect
I can have photocopied you can have photocopied he can have photocopied we can have photocopied you can have photocopied they can have photocopied
V-ing perfect
I can have been photocopying you can have been photocopying he can have been photocopying we can have been photocopying you can have been photocopying they can have been photocopying
Negation
Simple form
I can't photocopy you can't photocopy he can't photocopy we can't photocopy you can't photocopy they can't photocopy
V-ing form
I can't be photocopying you can't be photocopying he can't be photocopying we can't be photocopying you can't be photocopying they can't be photocopying
Perfect
I can't have photocopied you can't have photocopied he can't have photocopied we can't have photocopied you can't have photocopied they can't have photocopied
V-ing perfect
I can't have been photocopying you can't have been photocopying he can't have been photocopying we can't have been photocopying you can't have been photocopying they can't have been photocopying
Interrogative form
Simple form
can I photocopy? can you photocopy? can he photocopy? can we photocopy? can you photocopy? can they photocopy?
V-ing form
can I be photocopying? can you be photocopying? can he be photocopying? can we be photocopying? can you be photocopying? can they be photocopying?
Perfect
can I have photocopied? can you have photocopied? can he have photocopied? can we have photocopied? can you have photocopied? can they have photocopied?
V-ing perfect
can I have been photocopying? can you have been photocopying? can he have been photocopying? can we have been photocopying? can you have been photocopying? can they have been photocopying?
Interro-negative form
Simple form
can't I photocopy? can't you photocopy? can't he photocopy? can't we photocopy? can't you photocopy? can't they photocopy?
V-ing form
can't I be photocopying? can't you be photocopying? can't he be photocopying? can't we be photocopying? can't you be photocopying? can't they be photocopying?
Perfect
can't I have photocopied? can't you have photocopied? can't he have photocopied? can't we have photocopied? can't you have photocopied? can't they have photocopied?
V-ing perfect
can't I have been photocopying? can't you have been photocopying? can't he have been photocopying? can't we have been photocopying? can't you have been photocopying? can't they have been photocopying?