I can hem you can hem he can hem we can hem you can hem they can hem
V-ing form
I can be hemming you can be hemming he can be hemming we can be hemming you can be hemming they can be hemming
Perfect
I can have hemmed you can have hemmed he can have hemmed we can have hemmed you can have hemmed they can have hemmed
V-ing perfect
I can have been hemming you can have been hemming he can have been hemming we can have been hemming you can have been hemming they can have been hemming
Negation
Simple form
I can't hem you can't hem he can't hem we can't hem you can't hem they can't hem
V-ing form
I can't be hemming you can't be hemming he can't be hemming we can't be hemming you can't be hemming they can't be hemming
Perfect
I can't have hemmed you can't have hemmed he can't have hemmed we can't have hemmed you can't have hemmed they can't have hemmed
V-ing perfect
I can't have been hemming you can't have been hemming he can't have been hemming we can't have been hemming you can't have been hemming they can't have been hemming
Interrogative form
Simple form
can I hem? can you hem? can he hem? can we hem? can you hem? can they hem?
V-ing form
can I be hemming? can you be hemming? can he be hemming? can we be hemming? can you be hemming? can they be hemming?
Perfect
can I have hemmed? can you have hemmed? can he have hemmed? can we have hemmed? can you have hemmed? can they have hemmed?
V-ing perfect
can I have been hemming? can you have been hemming? can he have been hemming? can we have been hemming? can you have been hemming? can they have been hemming?
Interro-negative form
Simple form
can't I hem? can't you hem? can't he hem? can't we hem? can't you hem? can't they hem?
V-ing form
can't I be hemming? can't you be hemming? can't he be hemming? can't we be hemming? can't you be hemming? can't they be hemming?
Perfect
can't I have hemmed? can't you have hemmed? can't he have hemmed? can't we have hemmed? can't you have hemmed? can't they have hemmed?
V-ing perfect
can't I have been hemming? can't you have been hemming? can't he have been hemming? can't we have been hemming? can't you have been hemming? can't they have been hemming?