I can overthrow you can overthrow she can overthrow we can overthrow you can overthrow they can overthrow
V-ing form
I can be overthrowing you can be overthrowing she can be overthrowing we can be overthrowing you can be overthrowing they can be overthrowing
Perfect
I can have overthrown you can have overthrown she 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 she can have been overthrowing we can have been overthrowing you can have been overthrowing they can have been overthrowing
Negation
Simple form
I cannot overthrow you cannot overthrow she cannot overthrow we cannot overthrow you cannot overthrow they cannot overthrow
V-ing form
I cannot be overthrowing you cannot be overthrowing she cannot be overthrowing we cannot be overthrowing you cannot be overthrowing they cannot be overthrowing
Perfect
I cannot have overthrown you cannot have overthrown she cannot have overthrown we cannot have overthrown you cannot have overthrown they cannot have overthrown
V-ing perfect
I cannot have been overthrowing you cannot have been overthrowing she cannot have been overthrowing we cannot have been overthrowing you cannot have been overthrowing they cannot have been overthrowing
Interrogative form
Simple form
can I overthrow? can you overthrow? can she overthrow? can we overthrow? can you overthrow? can they overthrow?
V-ing form
can I be overthrowing? can you be overthrowing? can she be overthrowing? can we be overthrowing? can you be overthrowing? can they be overthrowing?
Perfect
can I have overthrown? can you have overthrown? can she 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 she have been overthrowing? can we have been overthrowing? can you have been overthrowing? can they have been overthrowing?
Interro-negative form
Simple form
can I not overthrow? can you not overthrow? can she not overthrow? can we not overthrow? can you not overthrow? can they not overthrow?
V-ing form
can I not be overthrowing? can you not be overthrowing? can she not be overthrowing? can we not be overthrowing? can you not be overthrowing? can they not be overthrowing?
Perfect
can I not have overthrown? can you not have overthrown? can she not have overthrown? can we not have overthrown? can you not have overthrown? can they not have overthrown?
V-ing perfect
can I not have been overthrowing? can you not have been overthrowing? can she not have been overthrowing? can we not have been overthrowing? can you not have been overthrowing? can they not have been overthrowing?