English verb conjugation
MUST FOOT

Regular verb: foot - footed - footed

Affirmation

Simple form	V-ing form
I must foot you must foot he must foot we must foot you must foot they must foot	I must be footing you must be footing he must be footing we must be footing you must be footing they must be footing
Perfect	V-ing perfect
I must have footed you must have footed he must have footed we must have footed you must have footed they must have footed	I must have been footing you must have been footing he must have been footing we must have been footing you must have been footing they must have been footing

Negation

Simple form	V-ing form
I must not foot you must not foot he must not foot we must not foot you must not foot they must not foot	I must not be footing you must not be footing he must not be footing we must not be footing you must not be footing they must not be footing
Perfect	V-ing perfect
I must not have footed you must not have footed he must not have footed we must not have footed you must not have footed they must not have footed	I must not have been footing you must not have been footing he must not have been footing we must not have been footing you must not have been footing they must not have been footing

Interrogative form

Simple form	V-ing form
must I foot? must you foot? must he foot? must we foot? must you foot? must they foot?	must I be footing? must you be footing? must he be footing? must we be footing? must you be footing? must they be footing?
Perfect	V-ing perfect
must I have footed? must you have footed? must he have footed? must we have footed? must you have footed? must they have footed?	must I have been footing? must you have been footing? must he have been footing? must we have been footing? must you have been footing? must they have been footing?

Interro-negative form

Simple form	V-ing form
must I not foot? must you not foot? must he not foot? must we not foot? must you not foot? must they not foot?	must I not be footing? must you not be footing? must he not be footing? must we not be footing? must you not be footing? must they not be footing?
Perfect	V-ing perfect
must I not have footed? must you not have footed? must he not have footed? must we not have footed? must you not have footed? must they not have footed?	must I not have been footing? must you not have been footing? must he not have been footing? must we not have been footing? must you not have been footing? must they not have been footing?