I can appertain you can appertain he can appertain we can appertain you can appertain they can appertain
V-ing form
I can be appertaining you can be appertaining he can be appertaining we can be appertaining you can be appertaining they can be appertaining
Perfect
I can have appertained you can have appertained he can have appertained we can have appertained you can have appertained they can have appertained
V-ing perfect
I can have been appertaining you can have been appertaining he can have been appertaining we can have been appertaining you can have been appertaining they can have been appertaining
Negation
Simple form
I cannot appertain you cannot appertain he cannot appertain we cannot appertain you cannot appertain they cannot appertain
V-ing form
I cannot be appertaining you cannot be appertaining he cannot be appertaining we cannot be appertaining you cannot be appertaining they cannot be appertaining
Perfect
I cannot have appertained you cannot have appertained he cannot have appertained we cannot have appertained you cannot have appertained they cannot have appertained
V-ing perfect
I cannot have been appertaining you cannot have been appertaining he cannot have been appertaining we cannot have been appertaining you cannot have been appertaining they cannot have been appertaining
Interrogative form
Simple form
can I appertain? can you appertain? can he appertain? can we appertain? can you appertain? can they appertain?
V-ing form
can I be appertaining? can you be appertaining? can he be appertaining? can we be appertaining? can you be appertaining? can they be appertaining?
Perfect
can I have appertained? can you have appertained? can he have appertained? can we have appertained? can you have appertained? can they have appertained?
V-ing perfect
can I have been appertaining? can you have been appertaining? can he have been appertaining? can we have been appertaining? can you have been appertaining? can they have been appertaining?
Interro-negative form
Simple form
can I not appertain? can you not appertain? can he not appertain? can we not appertain? can you not appertain? can they not appertain?
V-ing form
can I not be appertaining? can you not be appertaining? can he not be appertaining? can we not be appertaining? can you not be appertaining? can they not be appertaining?
Perfect
can I not have appertained? can you not have appertained? can he not have appertained? can we not have appertained? can you not have appertained? can they not have appertained?
V-ing perfect
can I not have been appertaining? can you not have been appertaining? can he not have been appertaining? can we not have been appertaining? can you not have been appertaining? can they not have been appertaining?