I can overthrow you can overthrow he can overthrow we can overthrow you can overthrow they can overthrow
V-ing form
I can be overthrowing you can be overthrowing he can be overthrowing we can be overthrowing you can be overthrowing they can be overthrowing
Perfect
I can have overthrown you can have overthrown he can have overthrown we can have overthrown you can have overthrown they can have overthrown
V-ing perfect
I can have been overthrowing you can have been overthrowing he can have been overthrowing we can have been overthrowing you can have been overthrowing they can have been overthrowing
Negation
Simple form
I can't overthrow you can't overthrow he can't overthrow we can't overthrow you can't overthrow they can't overthrow
V-ing form
I can't be overthrowing you can't be overthrowing he can't be overthrowing we can't be overthrowing you can't be overthrowing they can't be overthrowing
Perfect
I can't have overthrown you can't have overthrown he can't have overthrown we can't have overthrown you can't have overthrown they can't have overthrown
V-ing perfect
I can't have been overthrowing you can't have been overthrowing he can't have been overthrowing we can't have been overthrowing you can't have been overthrowing they can't have been overthrowing
Interrogative form
Simple form
can I overthrow? can you overthrow? can he overthrow? can we overthrow? can you overthrow? can they overthrow?
V-ing form
can I be overthrowing? can you be overthrowing? can he be overthrowing? can we be overthrowing? can you be overthrowing? can they be overthrowing?
Perfect
can I have overthrown? can you have overthrown? can he have overthrown? can we have overthrown? can you have overthrown? can they have overthrown?
V-ing perfect
can I have been overthrowing? can you have been overthrowing? can he have been overthrowing? can we have been overthrowing? can you have been overthrowing? can they have been overthrowing?
Interro-negative form
Simple form
can't I overthrow? can't you overthrow? can't he overthrow? can't we overthrow? can't you overthrow? can't they overthrow?
V-ing form
can't I be overthrowing? can't you be overthrowing? can't he be overthrowing? can't we be overthrowing? can't you be overthrowing? can't they be overthrowing?
Perfect
can't I have overthrown? can't you have overthrown? can't he have overthrown? can't we have overthrown? can't you have overthrown? can't they have overthrown?
V-ing perfect
can't I have been overthrowing? can't you have been overthrowing? can't he have been overthrowing? can't we have been overthrowing? can't you have been overthrowing? can't they have been overthrowing?