I can deliver you can deliver she can deliver we can deliver you can deliver they can deliver
V-ing form
I can be delivering you can be delivering she can be delivering we can be delivering you can be delivering they can be delivering
Perfect
I can have delivered you can have delivered she 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 she can have been delivering we can have been delivering you can have been delivering they can have been delivering
Negation
Simple form
I cannot deliver you cannot deliver she cannot deliver we cannot deliver you cannot deliver they cannot deliver
V-ing form
I cannot be delivering you cannot be delivering she cannot be delivering we cannot be delivering you cannot be delivering they cannot be delivering
Perfect
I cannot have delivered you cannot have delivered she cannot have delivered we cannot have delivered you cannot have delivered they cannot have delivered
V-ing perfect
I cannot have been delivering you cannot have been delivering she cannot have been delivering we cannot have been delivering you cannot have been delivering they cannot have been delivering
Interrogative form
Simple form
can I deliver? can you deliver? can she deliver? can we deliver? can you deliver? can they deliver?
V-ing form
can I be delivering? can you be delivering? can she be delivering? can we be delivering? can you be delivering? can they be delivering?
Perfect
can I have delivered? can you have delivered? can she 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 she have been delivering? can we have been delivering? can you have been delivering? can they have been delivering?
Interro-negative form
Simple form
can I not deliver? can you not deliver? can she not deliver? can we not deliver? can you not deliver? can they not deliver?
V-ing form
can I not be delivering? can you not be delivering? can she not be delivering? can we not be delivering? can you not be delivering? can they not be delivering?
Perfect
can I not have delivered? can you not have delivered? can she not have delivered? can we not have delivered? can you not have delivered? can they not have delivered?
V-ing perfect
can I not have been delivering? can you not have been delivering? can she not have been delivering? can we not have been delivering? can you not have been delivering? can they not have been delivering?