English verb conjugation
MUST DOUBLE-TIME

Regular verb: double-time - double-timed - double-timed

Affirmation

Simple form	V-ing form
I must double-time you must double-time she must double-time we must double-time you must double-time they must double-time	I must be double-timing you must be double-timing she must be double-timing we must be double-timing you must be double-timing they must be double-timing
Perfect	V-ing perfect
I must have double-timed you must have double-timed she must have double-timed we must have double-timed you must have double-timed they must have double-timed	I must have been double-timing you must have been double-timing she must have been double-timing we must have been double-timing you must have been double-timing they must have been double-timing

Negation

Simple form	V-ing form
I must not double-time you must not double-time she must not double-time we must not double-time you must not double-time they must not double-time	I must not be double-timing you must not be double-timing she must not be double-timing we must not be double-timing you must not be double-timing they must not be double-timing
Perfect	V-ing perfect
I must not have double-timed you must not have double-timed she must not have double-timed we must not have double-timed you must not have double-timed they must not have double-timed	I must not have been double-timing you must not have been double-timing she must not have been double-timing we must not have been double-timing you must not have been double-timing they must not have been double-timing

Interrogative form

Simple form	V-ing form
must I double-time? must you double-time? must she double-time? must we double-time? must you double-time? must they double-time?	must I be double-timing? must you be double-timing? must she be double-timing? must we be double-timing? must you be double-timing? must they be double-timing?
Perfect	V-ing perfect
must I have double-timed? must you have double-timed? must she have double-timed? must we have double-timed? must you have double-timed? must they have double-timed?	must I have been double-timing? must you have been double-timing? must she have been double-timing? must we have been double-timing? must you have been double-timing? must they have been double-timing?

Interro-negative form

Simple form	V-ing form
must I not double-time? must you not double-time? must she not double-time? must we not double-time? must you not double-time? must they not double-time?	must I not be double-timing? must you not be double-timing? must she not be double-timing? must we not be double-timing? must you not be double-timing? must they not be double-timing?
Perfect	V-ing perfect
must I not have double-timed? must you not have double-timed? must she not have double-timed? must we not have double-timed? must you not have double-timed? must they not have double-timed?	must I not have been double-timing? must you not have been double-timing? must she not have been double-timing? must we not have been double-timing? must you not have been double-timing? must they not have been double-timing?