English verb conjugation
MUST QUICKSTEP

Regular verb: quickstep - quicksteped - quicksteped

Affirmation

Simple form	V-ing form
I must quickstep you must quickstep she must quickstep we must quickstep you must quickstep they must quickstep	I must be quicksteping you must be quicksteping she must be quicksteping we must be quicksteping you must be quicksteping they must be quicksteping
Perfect	V-ing perfect
I must have quicksteped you must have quicksteped she must have quicksteped we must have quicksteped you must have quicksteped they must have quicksteped	I must have been quicksteping you must have been quicksteping she must have been quicksteping we must have been quicksteping you must have been quicksteping they must have been quicksteping

Negation

Simple form	V-ing form
I must not quickstep you must not quickstep she must not quickstep we must not quickstep you must not quickstep they must not quickstep	I must not be quicksteping you must not be quicksteping she must not be quicksteping we must not be quicksteping you must not be quicksteping they must not be quicksteping
Perfect	V-ing perfect
I must not have quicksteped you must not have quicksteped she must not have quicksteped we must not have quicksteped you must not have quicksteped they must not have quicksteped	I must not have been quicksteping you must not have been quicksteping she must not have been quicksteping we must not have been quicksteping you must not have been quicksteping they must not have been quicksteping

Interrogative form

Simple form	V-ing form
must I quickstep? must you quickstep? must she quickstep? must we quickstep? must you quickstep? must they quickstep?	must I be quicksteping? must you be quicksteping? must she be quicksteping? must we be quicksteping? must you be quicksteping? must they be quicksteping?
Perfect	V-ing perfect
must I have quicksteped? must you have quicksteped? must she have quicksteped? must we have quicksteped? must you have quicksteped? must they have quicksteped?	must I have been quicksteping? must you have been quicksteping? must she have been quicksteping? must we have been quicksteping? must you have been quicksteping? must they have been quicksteping?

Interro-negative form

Simple form	V-ing form
must I not quickstep? must you not quickstep? must she not quickstep? must we not quickstep? must you not quickstep? must they not quickstep?	must I not be quicksteping? must you not be quicksteping? must she not be quicksteping? must we not be quicksteping? must you not be quicksteping? must they not be quicksteping?
Perfect	V-ing perfect
must I not have quicksteped? must you not have quicksteped? must she not have quicksteped? must we not have quicksteped? must you not have quicksteped? must they not have quicksteped?	must I not have been quicksteping? must you not have been quicksteping? must she not have been quicksteping? must we not have been quicksteping? must you not have been quicksteping? must they not have been quicksteping?