English verb conjugation
MUST HELP

Regular verb: help - helped - helped

Affirmation

Simple form	V-ing form
I must help you must help she must help we must help you must help they must help	I must be helping you must be helping she must be helping we must be helping you must be helping they must be helping
Perfect	V-ing perfect
I must have helped you must have helped she must have helped we must have helped you must have helped they must have helped	I must have been helping you must have been helping she must have been helping we must have been helping you must have been helping they must have been helping

Negation

Simple form	V-ing form
I must not help you must not help she must not help we must not help you must not help they must not help	I must not be helping you must not be helping she must not be helping we must not be helping you must not be helping they must not be helping
Perfect	V-ing perfect
I must not have helped you must not have helped she must not have helped we must not have helped you must not have helped they must not have helped	I must not have been helping you must not have been helping she must not have been helping we must not have been helping you must not have been helping they must not have been helping

Interrogative form

Simple form	V-ing form
must I help? must you help? must she help? must we help? must you help? must they help?	must I be helping? must you be helping? must she be helping? must we be helping? must you be helping? must they be helping?
Perfect	V-ing perfect
must I have helped? must you have helped? must she have helped? must we have helped? must you have helped? must they have helped?	must I have been helping? must you have been helping? must she have been helping? must we have been helping? must you have been helping? must they have been helping?

Interro-negative form

Simple form	V-ing form
must I not help? must you not help? must she not help? must we not help? must you not help? must they not help?	must I not be helping? must you not be helping? must she not be helping? must we not be helping? must you not be helping? must they not be helping?
Perfect	V-ing perfect
must I not have helped? must you not have helped? must she not have helped? must we not have helped? must you not have helped? must they not have helped?	must I not have been helping? must you not have been helping? must she not have been helping? must we not have been helping? must you not have been helping? must they not have been helping?