English verb conjugation
MUST DEMARCATE

Regular verb: demarcate - demarcated - demarcated

Affirmation

Simple form	V-ing form
I must demarcate you must demarcate he must demarcate we must demarcate you must demarcate they must demarcate	I must be demarcating you must be demarcating he must be demarcating we must be demarcating you must be demarcating they must be demarcating
Perfect	V-ing perfect
I must have demarcated you must have demarcated he must have demarcated we must have demarcated you must have demarcated they must have demarcated	I must have been demarcating you must have been demarcating he must have been demarcating we must have been demarcating you must have been demarcating they must have been demarcating

Negation

Simple form	V-ing form
I must not demarcate you must not demarcate he must not demarcate we must not demarcate you must not demarcate they must not demarcate	I must not be demarcating you must not be demarcating he must not be demarcating we must not be demarcating you must not be demarcating they must not be demarcating
Perfect	V-ing perfect
I must not have demarcated you must not have demarcated he must not have demarcated we must not have demarcated you must not have demarcated they must not have demarcated	I must not have been demarcating you must not have been demarcating he must not have been demarcating we must not have been demarcating you must not have been demarcating they must not have been demarcating

Interrogative form

Simple form	V-ing form
must I demarcate? must you demarcate? must he demarcate? must we demarcate? must you demarcate? must they demarcate?	must I be demarcating? must you be demarcating? must he be demarcating? must we be demarcating? must you be demarcating? must they be demarcating?
Perfect	V-ing perfect
must I have demarcated? must you have demarcated? must he have demarcated? must we have demarcated? must you have demarcated? must they have demarcated?	must I have been demarcating? must you have been demarcating? must he have been demarcating? must we have been demarcating? must you have been demarcating? must they have been demarcating?

Interro-negative form

Simple form	V-ing form
must I not demarcate? must you not demarcate? must he not demarcate? must we not demarcate? must you not demarcate? must they not demarcate?	must I not be demarcating? must you not be demarcating? must he not be demarcating? must we not be demarcating? must you not be demarcating? must they not be demarcating?
Perfect	V-ing perfect
must I not have demarcated? must you not have demarcated? must he not have demarcated? must we not have demarcated? must you not have demarcated? must they not have demarcated?	must I not have been demarcating? must you not have been demarcating? must he not have been demarcating? must we not have been demarcating? must you not have been demarcating? must they not have been demarcating?