I can deliver you can deliver he can deliver we can deliver you can deliver they can deliver
V-ing form
I can be delivering you can be delivering he can be delivering we can be delivering you can be delivering they can be delivering
Perfect
I can have delivered you can have delivered he can have delivered we can have delivered you can have delivered they can have delivered
V-ing perfect
I can have been delivering you can have been delivering he can have been delivering we can have been delivering you can have been delivering they can have been delivering
Negation
Simple form
I can't deliver you can't deliver he can't deliver we can't deliver you can't deliver they can't deliver
V-ing form
I can't be delivering you can't be delivering he can't be delivering we can't be delivering you can't be delivering they can't be delivering
Perfect
I can't have delivered you can't have delivered he can't have delivered we can't have delivered you can't have delivered they can't have delivered
V-ing perfect
I can't have been delivering you can't have been delivering he can't have been delivering we can't have been delivering you can't have been delivering they can't have been delivering
Interrogative form
Simple form
can I deliver? can you deliver? can he deliver? can we deliver? can you deliver? can they deliver?
V-ing form
can I be delivering? can you be delivering? can he be delivering? can we be delivering? can you be delivering? can they be delivering?
Perfect
can I have delivered? can you have delivered? can he have delivered? can we have delivered? can you have delivered? can they have delivered?
V-ing perfect
can I have been delivering? can you have been delivering? can he have been delivering? can we have been delivering? can you have been delivering? can they have been delivering?
Interro-negative form
Simple form
can't I deliver? can't you deliver? can't he deliver? can't we deliver? can't you deliver? can't they deliver?
V-ing form
can't I be delivering? can't you be delivering? can't he be delivering? can't we be delivering? can't you be delivering? can't they be delivering?
Perfect
can't I have delivered? can't you have delivered? can't he have delivered? can't we have delivered? can't you have delivered? can't they have delivered?
V-ing perfect
can't I have been delivering? can't you have been delivering? can't he have been delivering? can't we have been delivering? can't you have been delivering? can't they have been delivering?