I can countenance you can countenance he can countenance we can countenance you can countenance they can countenance
V-ing form
I can be countenancing you can be countenancing he can be countenancing we can be countenancing you can be countenancing they can be countenancing
Perfect
I can have countenanced you can have countenanced he can have countenanced we can have countenanced you can have countenanced they can have countenanced
V-ing perfect
I can have been countenancing you can have been countenancing he can have been countenancing we can have been countenancing you can have been countenancing they can have been countenancing
Negation
Simple form
I cannot countenance you cannot countenance he cannot countenance we cannot countenance you cannot countenance they cannot countenance
V-ing form
I cannot be countenancing you cannot be countenancing he cannot be countenancing we cannot be countenancing you cannot be countenancing they cannot be countenancing
Perfect
I cannot have countenanced you cannot have countenanced he cannot have countenanced we cannot have countenanced you cannot have countenanced they cannot have countenanced
V-ing perfect
I cannot have been countenancing you cannot have been countenancing he cannot have been countenancing we cannot have been countenancing you cannot have been countenancing they cannot have been countenancing
Interrogative form
Simple form
can I countenance? can you countenance? can he countenance? can we countenance? can you countenance? can they countenance?
V-ing form
can I be countenancing? can you be countenancing? can he be countenancing? can we be countenancing? can you be countenancing? can they be countenancing?
Perfect
can I have countenanced? can you have countenanced? can he have countenanced? can we have countenanced? can you have countenanced? can they have countenanced?
V-ing perfect
can I have been countenancing? can you have been countenancing? can he have been countenancing? can we have been countenancing? can you have been countenancing? can they have been countenancing?
Interro-negative form
Simple form
can I not countenance? can you not countenance? can he not countenance? can we not countenance? can you not countenance? can they not countenance?
V-ing form
can I not be countenancing? can you not be countenancing? can he not be countenancing? can we not be countenancing? can you not be countenancing? can they not be countenancing?
Perfect
can I not have countenanced? can you not have countenanced? can he not have countenanced? can we not have countenanced? can you not have countenanced? can they not have countenanced?
V-ing perfect
can I not have been countenancing? can you not have been countenancing? can he not have been countenancing? can we not have been countenancing? can you not have been countenancing? can they not have been countenancing?