English verb conjugation
MUST UNSTEP

Regular verb: unstep - unsteped - unsteped

Affirmation

Simple form	V-ing form
I must unstep you must unstep he must unstep we must unstep you must unstep they must unstep	I must be unsteping you must be unsteping he must be unsteping we must be unsteping you must be unsteping they must be unsteping
Perfect	V-ing perfect
I must have unsteped you must have unsteped he must have unsteped we must have unsteped you must have unsteped they must have unsteped	I must have been unsteping you must have been unsteping he must have been unsteping we must have been unsteping you must have been unsteping they must have been unsteping

Negation

Simple form	V-ing form
I must not unstep you must not unstep he must not unstep we must not unstep you must not unstep they must not unstep	I must not be unsteping you must not be unsteping he must not be unsteping we must not be unsteping you must not be unsteping they must not be unsteping
Perfect	V-ing perfect
I must not have unsteped you must not have unsteped he must not have unsteped we must not have unsteped you must not have unsteped they must not have unsteped	I must not have been unsteping you must not have been unsteping he must not have been unsteping we must not have been unsteping you must not have been unsteping they must not have been unsteping

Interrogative form

Simple form	V-ing form
must I unstep? must you unstep? must he unstep? must we unstep? must you unstep? must they unstep?	must I be unsteping? must you be unsteping? must he be unsteping? must we be unsteping? must you be unsteping? must they be unsteping?
Perfect	V-ing perfect
must I have unsteped? must you have unsteped? must he have unsteped? must we have unsteped? must you have unsteped? must they have unsteped?	must I have been unsteping? must you have been unsteping? must he have been unsteping? must we have been unsteping? must you have been unsteping? must they have been unsteping?

Interro-negative form

Simple form	V-ing form
must I not unstep? must you not unstep? must he not unstep? must we not unstep? must you not unstep? must they not unstep?	must I not be unsteping? must you not be unsteping? must he not be unsteping? must we not be unsteping? must you not be unsteping? must they not be unsteping?
Perfect	V-ing perfect
must I not have unsteped? must you not have unsteped? must he not have unsteped? must we not have unsteped? must you not have unsteped? must they not have unsteped?	must I not have been unsteping? must you not have been unsteping? must he not have been unsteping? must we not have been unsteping? must you not have been unsteping? must they not have been unsteping?