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 can't discharge you can't discharge he can't discharge we can't discharge you can't discharge they can't discharge
V-ing form
I can't be discharging you can't be discharging he can't be discharging we can't be discharging you can't be discharging they can't be discharging
Perfect
I can't have discharged you can't have discharged he can't have discharged we can't have discharged you can't have discharged they can't have discharged
V-ing perfect
I can't have been discharging you can't have been discharging he can't have been discharging we can't have been discharging you can't have been discharging they can't 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't I discharge? can't you discharge? can't he discharge? can't we discharge? can't you discharge? can't they discharge?
V-ing form
can't I be discharging? can't you be discharging? can't he be discharging? can't we be discharging? can't you be discharging? can't they be discharging?
Perfect
can't I have discharged? can't you have discharged? can't he have discharged? can't we have discharged? can't you have discharged? can't they have discharged?
V-ing perfect
can't I have been discharging? can't you have been discharging? can't he have been discharging? can't we have been discharging? can't you have been discharging? can't they have been discharging?