English verb conjugation
MUST APPERTAIN

Regular verb: appertain - appertained - appertained

Affirmation

Simple form	V-ing form
I must appertain you must appertain he must appertain we must appertain you must appertain they must appertain	I must be appertaining you must be appertaining he must be appertaining we must be appertaining you must be appertaining they must be appertaining
Perfect	V-ing perfect
I must have appertained you must have appertained he must have appertained we must have appertained you must have appertained they must have appertained	I must have been appertaining you must have been appertaining he must have been appertaining we must have been appertaining you must have been appertaining they must have been appertaining

Negation

Simple form	V-ing form
I mustn't appertain you mustn't appertain he mustn't appertain we mustn't appertain you mustn't appertain they mustn't appertain	I mustn't be appertaining you mustn't be appertaining he mustn't be appertaining we mustn't be appertaining you mustn't be appertaining they mustn't be appertaining
Perfect	V-ing perfect
I mustn't have appertained you mustn't have appertained he mustn't have appertained we mustn't have appertained you mustn't have appertained they mustn't have appertained	I mustn't have been appertaining you mustn't have been appertaining he mustn't have been appertaining we mustn't have been appertaining you mustn't have been appertaining they mustn't have been appertaining

Interrogative form

Simple form	V-ing form
must I appertain? must you appertain? must he appertain? must we appertain? must you appertain? must they appertain?	must I be appertaining? must you be appertaining? must he be appertaining? must we be appertaining? must you be appertaining? must they be appertaining?
Perfect	V-ing perfect
must I have appertained? must you have appertained? must he have appertained? must we have appertained? must you have appertained? must they have appertained?	must I have been appertaining? must you have been appertaining? must he have been appertaining? must we have been appertaining? must you have been appertaining? must they have been appertaining?

Interro-negative form

Simple form	V-ing form
mustn't I appertain? mustn't you appertain? mustn't he appertain? mustn't we appertain? mustn't you appertain? mustn't they appertain?	mustn't I be appertaining? mustn't you be appertaining? mustn't he be appertaining? mustn't we be appertaining? mustn't you be appertaining? mustn't they be appertaining?
Perfect	V-ing perfect
mustn't I have appertained? mustn't you have appertained? mustn't he have appertained? mustn't we have appertained? mustn't you have appertained? mustn't they have appertained?	mustn't I have been appertaining? mustn't you have been appertaining? mustn't he have been appertaining? mustn't we have been appertaining? mustn't you have been appertaining? mustn't they have been appertaining?