I can save you can save he can save we can save you can save they can save
V-ing form
I can be saving you can be saving he can be saving we can be saving you can be saving they can be saving
Perfect
I can have saved you can have saved he can have saved we can have saved you can have saved they can have saved
V-ing perfect
I can have been saving you can have been saving he can have been saving we can have been saving you can have been saving they can have been saving
Negation
Simple form
I can't save you can't save he can't save we can't save you can't save they can't save
V-ing form
I can't be saving you can't be saving he can't be saving we can't be saving you can't be saving they can't be saving
Perfect
I can't have saved you can't have saved he can't have saved we can't have saved you can't have saved they can't have saved
V-ing perfect
I can't have been saving you can't have been saving he can't have been saving we can't have been saving you can't have been saving they can't have been saving
Interrogative form
Simple form
can I save? can you save? can he save? can we save? can you save? can they save?
V-ing form
can I be saving? can you be saving? can he be saving? can we be saving? can you be saving? can they be saving?
Perfect
can I have saved? can you have saved? can he have saved? can we have saved? can you have saved? can they have saved?
V-ing perfect
can I have been saving? can you have been saving? can he have been saving? can we have been saving? can you have been saving? can they have been saving?
Interro-negative form
Simple form
can't I save? can't you save? can't he save? can't we save? can't you save? can't they save?
V-ing form
can't I be saving? can't you be saving? can't he be saving? can't we be saving? can't you be saving? can't they be saving?
Perfect
can't I have saved? can't you have saved? can't he have saved? can't we have saved? can't you have saved? can't they have saved?
V-ing perfect
can't I have been saving? can't you have been saving? can't he have been saving? can't we have been saving? can't you have been saving? can't they have been saving?