English verb conjugation
MUST STOPPLE

Regular verb: stopple - stoppled - stoppled

Affirmation

Simple form	V-ing form
I must stopple you must stopple he must stopple we must stopple you must stopple they must stopple	I must be stoppling you must be stoppling he must be stoppling we must be stoppling you must be stoppling they must be stoppling
Perfect	V-ing perfect
I must have stoppled you must have stoppled he must have stoppled we must have stoppled you must have stoppled they must have stoppled	I must have been stoppling you must have been stoppling he must have been stoppling we must have been stoppling you must have been stoppling they must have been stoppling

Negation

Simple form	V-ing form
I must not stopple you must not stopple he must not stopple we must not stopple you must not stopple they must not stopple	I must not be stoppling you must not be stoppling he must not be stoppling we must not be stoppling you must not be stoppling they must not be stoppling
Perfect	V-ing perfect
I must not have stoppled you must not have stoppled he must not have stoppled we must not have stoppled you must not have stoppled they must not have stoppled	I must not have been stoppling you must not have been stoppling he must not have been stoppling we must not have been stoppling you must not have been stoppling they must not have been stoppling

Interrogative form

Simple form	V-ing form
must I stopple? must you stopple? must he stopple? must we stopple? must you stopple? must they stopple?	must I be stoppling? must you be stoppling? must he be stoppling? must we be stoppling? must you be stoppling? must they be stoppling?
Perfect	V-ing perfect
must I have stoppled? must you have stoppled? must he have stoppled? must we have stoppled? must you have stoppled? must they have stoppled?	must I have been stoppling? must you have been stoppling? must he have been stoppling? must we have been stoppling? must you have been stoppling? must they have been stoppling?

Interro-negative form

Simple form	V-ing form
must I not stopple? must you not stopple? must he not stopple? must we not stopple? must you not stopple? must they not stopple?	must I not be stoppling? must you not be stoppling? must he not be stoppling? must we not be stoppling? must you not be stoppling? must they not be stoppling?
Perfect	V-ing perfect
must I not have stoppled? must you not have stoppled? must he not have stoppled? must we not have stoppled? must you not have stoppled? must they not have stoppled?	must I not have been stoppling? must you not have been stoppling? must he not have been stoppling? must we not have been stoppling? must you not have been stoppling? must they not have been stoppling?