I can discharge you can discharge he can discharge we can discharge you can discharge they can discharge
V-ing form
I can be discharging you can be discharging he can be discharging we can be discharging you can be discharging they can be discharging
Perfect
I can have discharged you can have discharged he can have discharged we can have discharged you can have discharged they can have discharged
V-ing perfect
I can have been discharging you can have been discharging he can have been discharging we can have been discharging you can have been discharging they can have been discharging
Negation
Simple form
I cannot discharge you cannot discharge he cannot discharge we cannot discharge you cannot discharge they cannot discharge
V-ing form
I cannot be discharging you cannot be discharging he cannot be discharging we cannot be discharging you cannot be discharging they cannot be discharging
Perfect
I cannot have discharged you cannot have discharged he cannot have discharged we cannot have discharged you cannot have discharged they cannot have discharged
V-ing perfect
I cannot have been discharging you cannot have been discharging he cannot have been discharging we cannot have been discharging you cannot have been discharging they cannot have been discharging
Interrogative form
Simple form
can I discharge? can you discharge? can he discharge? can we discharge? can you discharge? can they discharge?
V-ing form
can I be discharging? can you be discharging? can he be discharging? can we be discharging? can you be discharging? can they be discharging?
Perfect
can I have discharged? can you have discharged? can he have discharged? can we have discharged? can you have discharged? can they have discharged?
V-ing perfect
can I have been discharging? can you have been discharging? can he have been discharging? can we have been discharging? can you have been discharging? can they have been discharging?
Interro-negative form
Simple form
can I not discharge? can you not discharge? can he not discharge? can we not discharge? can you not discharge? can they not discharge?
V-ing form
can I not be discharging? can you not be discharging? can he not be discharging? can we not be discharging? can you not be discharging? can they not be discharging?
Perfect
can I not have discharged? can you not have discharged? can he not have discharged? can we not have discharged? can you not have discharged? can they not have discharged?
V-ing perfect
can I not have been discharging? can you not have been discharging? can he not have been discharging? can we not have been discharging? can you not have been discharging? can they not have been discharging?