I can arm you can arm she can arm we can arm you can arm they can arm
V-ing form
I can be arming you can be arming she can be arming we can be arming you can be arming they can be arming
Perfect
I can have armed you can have armed she can have armed we can have armed you can have armed they can have armed
V-ing perfect
I can have been arming you can have been arming she can have been arming we can have been arming you can have been arming they can have been arming
Negation
Simple form
I cannot arm you cannot arm she cannot arm we cannot arm you cannot arm they cannot arm
V-ing form
I cannot be arming you cannot be arming she cannot be arming we cannot be arming you cannot be arming they cannot be arming
Perfect
I cannot have armed you cannot have armed she cannot have armed we cannot have armed you cannot have armed they cannot have armed
V-ing perfect
I cannot have been arming you cannot have been arming she cannot have been arming we cannot have been arming you cannot have been arming they cannot have been arming
Interrogative form
Simple form
can I arm? can you arm? can she arm? can we arm? can you arm? can they arm?
V-ing form
can I be arming? can you be arming? can she be arming? can we be arming? can you be arming? can they be arming?
Perfect
can I have armed? can you have armed? can she have armed? can we have armed? can you have armed? can they have armed?
V-ing perfect
can I have been arming? can you have been arming? can she have been arming? can we have been arming? can you have been arming? can they have been arming?
Interro-negative form
Simple form
can I not arm? can you not arm? can she not arm? can we not arm? can you not arm? can they not arm?
V-ing form
can I not be arming? can you not be arming? can she not be arming? can we not be arming? can you not be arming? can they not be arming?
Perfect
can I not have armed? can you not have armed? can she not have armed? can we not have armed? can you not have armed? can they not have armed?
V-ing perfect
can I not have been arming? can you not have been arming? can she not have been arming? can we not have been arming? can you not have been arming? can they not have been arming?