I can convene you can convene he can convene we can convene you can convene they can convene
V-ing form
I can be convening you can be convening he can be convening we can be convening you can be convening they can be convening
Perfect
I can have convened you can have convened he can have convened we can have convened you can have convened they can have convened
V-ing perfect
I can have been convening you can have been convening he can have been convening we can have been convening you can have been convening they can have been convening
Negation
Simple form
I cannot convene you cannot convene he cannot convene we cannot convene you cannot convene they cannot convene
V-ing form
I cannot be convening you cannot be convening he cannot be convening we cannot be convening you cannot be convening they cannot be convening
Perfect
I cannot have convened you cannot have convened he cannot have convened we cannot have convened you cannot have convened they cannot have convened
V-ing perfect
I cannot have been convening you cannot have been convening he cannot have been convening we cannot have been convening you cannot have been convening they cannot have been convening
Interrogative form
Simple form
can I convene? can you convene? can he convene? can we convene? can you convene? can they convene?
V-ing form
can I be convening? can you be convening? can he be convening? can we be convening? can you be convening? can they be convening?
Perfect
can I have convened? can you have convened? can he have convened? can we have convened? can you have convened? can they have convened?
V-ing perfect
can I have been convening? can you have been convening? can he have been convening? can we have been convening? can you have been convening? can they have been convening?
Interro-negative form
Simple form
can I not convene? can you not convene? can he not convene? can we not convene? can you not convene? can they not convene?
V-ing form
can I not be convening? can you not be convening? can he not be convening? can we not be convening? can you not be convening? can they not be convening?
Perfect
can I not have convened? can you not have convened? can he not have convened? can we not have convened? can you not have convened? can they not have convened?
V-ing perfect
can I not have been convening? can you not have been convening? can he not have been convening? can we not have been convening? can you not have been convening? can they not have been convening?