I can injure you can injure she can injure we can injure you can injure they can injure
V-ing form
I can be injuring you can be injuring she can be injuring we can be injuring you can be injuring they can be injuring
Perfect
I can have injured you can have injured she can have injured we can have injured you can have injured they can have injured
V-ing perfect
I can have been injuring you can have been injuring she can have been injuring we can have been injuring you can have been injuring they can have been injuring
Negation
Simple form
I can't injure you can't injure she can't injure we can't injure you can't injure they can't injure
V-ing form
I can't be injuring you can't be injuring she can't be injuring we can't be injuring you can't be injuring they can't be injuring
Perfect
I can't have injured you can't have injured she can't have injured we can't have injured you can't have injured they can't have injured
V-ing perfect
I can't have been injuring you can't have been injuring she can't have been injuring we can't have been injuring you can't have been injuring they can't have been injuring
Interrogative form
Simple form
can I injure? can you injure? can she injure? can we injure? can you injure? can they injure?
V-ing form
can I be injuring? can you be injuring? can she be injuring? can we be injuring? can you be injuring? can they be injuring?
Perfect
can I have injured? can you have injured? can she have injured? can we have injured? can you have injured? can they have injured?
V-ing perfect
can I have been injuring? can you have been injuring? can she have been injuring? can we have been injuring? can you have been injuring? can they have been injuring?
Interro-negative form
Simple form
can't I injure? can't you injure? can't she injure? can't we injure? can't you injure? can't they injure?
V-ing form
can't I be injuring? can't you be injuring? can't she be injuring? can't we be injuring? can't you be injuring? can't they be injuring?
Perfect
can't I have injured? can't you have injured? can't she have injured? can't we have injured? can't you have injured? can't they have injured?
V-ing perfect
can't I have been injuring? can't you have been injuring? can't she have been injuring? can't we have been injuring? can't you have been injuring? can't they have been injuring?