I can delete you can delete he can delete we can delete you can delete they can delete
V-ing form
I can be deleting you can be deleting he can be deleting we can be deleting you can be deleting they can be deleting
Perfect
I can have deleted you can have deleted he can have deleted we can have deleted you can have deleted they can have deleted
V-ing perfect
I can have been deleting you can have been deleting he can have been deleting we can have been deleting you can have been deleting they can have been deleting
Negation
Simple form
I can't delete you can't delete he can't delete we can't delete you can't delete they can't delete
V-ing form
I can't be deleting you can't be deleting he can't be deleting we can't be deleting you can't be deleting they can't be deleting
Perfect
I can't have deleted you can't have deleted he can't have deleted we can't have deleted you can't have deleted they can't have deleted
V-ing perfect
I can't have been deleting you can't have been deleting he can't have been deleting we can't have been deleting you can't have been deleting they can't have been deleting
Interrogative form
Simple form
can I delete? can you delete? can he delete? can we delete? can you delete? can they delete?
V-ing form
can I be deleting? can you be deleting? can he be deleting? can we be deleting? can you be deleting? can they be deleting?
Perfect
can I have deleted? can you have deleted? can he have deleted? can we have deleted? can you have deleted? can they have deleted?
V-ing perfect
can I have been deleting? can you have been deleting? can he have been deleting? can we have been deleting? can you have been deleting? can they have been deleting?
Interro-negative form
Simple form
can't I delete? can't you delete? can't he delete? can't we delete? can't you delete? can't they delete?
V-ing form
can't I be deleting? can't you be deleting? can't he be deleting? can't we be deleting? can't you be deleting? can't they be deleting?
Perfect
can't I have deleted? can't you have deleted? can't he have deleted? can't we have deleted? can't you have deleted? can't they have deleted?
V-ing perfect
can't I have been deleting? can't you have been deleting? can't he have been deleting? can't we have been deleting? can't you have been deleting? can't they have been deleting?