English verb conjugation
MUST SENTINEL

Regular verb: sentinel - sentineled - sentineled

Affirmation

Simple form	V-ing form
I must sentinel you must sentinel he must sentinel we must sentinel you must sentinel they must sentinel	I must be sentineling you must be sentineling he must be sentineling we must be sentineling you must be sentineling they must be sentineling
Perfect	V-ing perfect
I must have sentineled you must have sentineled he must have sentineled we must have sentineled you must have sentineled they must have sentineled	I must have been sentineling you must have been sentineling he must have been sentineling we must have been sentineling you must have been sentineling they must have been sentineling

Negation

Simple form	V-ing form
I mustn't sentinel you mustn't sentinel he mustn't sentinel we mustn't sentinel you mustn't sentinel they mustn't sentinel	I mustn't be sentineling you mustn't be sentineling he mustn't be sentineling we mustn't be sentineling you mustn't be sentineling they mustn't be sentineling
Perfect	V-ing perfect
I mustn't have sentineled you mustn't have sentineled he mustn't have sentineled we mustn't have sentineled you mustn't have sentineled they mustn't have sentineled	I mustn't have been sentineling you mustn't have been sentineling he mustn't have been sentineling we mustn't have been sentineling you mustn't have been sentineling they mustn't have been sentineling

Interrogative form

Simple form	V-ing form
must I sentinel? must you sentinel? must he sentinel? must we sentinel? must you sentinel? must they sentinel?	must I be sentineling? must you be sentineling? must he be sentineling? must we be sentineling? must you be sentineling? must they be sentineling?
Perfect	V-ing perfect
must I have sentineled? must you have sentineled? must he have sentineled? must we have sentineled? must you have sentineled? must they have sentineled?	must I have been sentineling? must you have been sentineling? must he have been sentineling? must we have been sentineling? must you have been sentineling? must they have been sentineling?

Interro-negative form

Simple form	V-ing form
mustn't I sentinel? mustn't you sentinel? mustn't he sentinel? mustn't we sentinel? mustn't you sentinel? mustn't they sentinel?	mustn't I be sentineling? mustn't you be sentineling? mustn't he be sentineling? mustn't we be sentineling? mustn't you be sentineling? mustn't they be sentineling?
Perfect	V-ing perfect
mustn't I have sentineled? mustn't you have sentineled? mustn't he have sentineled? mustn't we have sentineled? mustn't you have sentineled? mustn't they have sentineled?	mustn't I have been sentineling? mustn't you have been sentineling? mustn't he have been sentineling? mustn't we have been sentineling? mustn't you have been sentineling? mustn't they have been sentineling?