English verb conjugation
MUST STIPPLE

Regular verb: stipple - stippled - stippled

Affirmation

Simple form	V-ing form
I must stipple you must stipple he must stipple we must stipple you must stipple they must stipple	I must be stippling you must be stippling he must be stippling we must be stippling you must be stippling they must be stippling
Perfect	V-ing perfect
I must have stippled you must have stippled he must have stippled we must have stippled you must have stippled they must have stippled	I must have been stippling you must have been stippling he must have been stippling we must have been stippling you must have been stippling they must have been stippling

Negation

Simple form	V-ing form
I must not stipple you must not stipple he must not stipple we must not stipple you must not stipple they must not stipple	I must not be stippling you must not be stippling he must not be stippling we must not be stippling you must not be stippling they must not be stippling
Perfect	V-ing perfect
I must not have stippled you must not have stippled he must not have stippled we must not have stippled you must not have stippled they must not have stippled	I must not have been stippling you must not have been stippling he must not have been stippling we must not have been stippling you must not have been stippling they must not have been stippling

Interrogative form

Simple form	V-ing form
must I stipple? must you stipple? must he stipple? must we stipple? must you stipple? must they stipple?	must I be stippling? must you be stippling? must he be stippling? must we be stippling? must you be stippling? must they be stippling?
Perfect	V-ing perfect
must I have stippled? must you have stippled? must he have stippled? must we have stippled? must you have stippled? must they have stippled?	must I have been stippling? must you have been stippling? must he have been stippling? must we have been stippling? must you have been stippling? must they have been stippling?

Interro-negative form

Simple form	V-ing form
must I not stipple? must you not stipple? must he not stipple? must we not stipple? must you not stipple? must they not stipple?	must I not be stippling? must you not be stippling? must he not be stippling? must we not be stippling? must you not be stippling? must they not be stippling?
Perfect	V-ing perfect
must I not have stippled? must you not have stippled? must he not have stippled? must we not have stippled? must you not have stippled? must they not have stippled?	must I not have been stippling? must you not have been stippling? must he not have been stippling? must we not have been stippling? must you not have been stippling? must they not have been stippling?