English verb conjugation
MUST COUNTERSTEP

Regular verb: counterstep - countersteped - countersteped

Affirmation

Simple form	V-ing form
I must counterstep you must counterstep he must counterstep we must counterstep you must counterstep they must counterstep	I must be countersteping you must be countersteping he must be countersteping we must be countersteping you must be countersteping they must be countersteping
Perfect	V-ing perfect
I must have countersteped you must have countersteped he must have countersteped we must have countersteped you must have countersteped they must have countersteped	I must have been countersteping you must have been countersteping he must have been countersteping we must have been countersteping you must have been countersteping they must have been countersteping

Negation

Simple form	V-ing form
I must not counterstep you must not counterstep he must not counterstep we must not counterstep you must not counterstep they must not counterstep	I must not be countersteping you must not be countersteping he must not be countersteping we must not be countersteping you must not be countersteping they must not be countersteping
Perfect	V-ing perfect
I must not have countersteped you must not have countersteped he must not have countersteped we must not have countersteped you must not have countersteped they must not have countersteped	I must not have been countersteping you must not have been countersteping he must not have been countersteping we must not have been countersteping you must not have been countersteping they must not have been countersteping

Interrogative form

Simple form	V-ing form
must I counterstep? must you counterstep? must he counterstep? must we counterstep? must you counterstep? must they counterstep?	must I be countersteping? must you be countersteping? must he be countersteping? must we be countersteping? must you be countersteping? must they be countersteping?
Perfect	V-ing perfect
must I have countersteped? must you have countersteped? must he have countersteped? must we have countersteped? must you have countersteped? must they have countersteped?	must I have been countersteping? must you have been countersteping? must he have been countersteping? must we have been countersteping? must you have been countersteping? must they have been countersteping?

Interro-negative form

Simple form	V-ing form
must I not counterstep? must you not counterstep? must he not counterstep? must we not counterstep? must you not counterstep? must they not counterstep?	must I not be countersteping? must you not be countersteping? must he not be countersteping? must we not be countersteping? must you not be countersteping? must they not be countersteping?
Perfect	V-ing perfect
must I not have countersteped? must you not have countersteped? must he not have countersteped? must we not have countersteped? must you not have countersteped? must they not have countersteped?	must I not have been countersteping? must you not have been countersteping? must he not have been countersteping? must we not have been countersteping? must you not have been countersteping? must they not have been countersteping?