English verb conjugation
MUST BARTER

Regular verb: barter - bartered - bartered

Affirmation

Simple form	V-ing form
I must barter you must barter he must barter we must barter you must barter they must barter	I must be bartering you must be bartering he must be bartering we must be bartering you must be bartering they must be bartering
Perfect	V-ing perfect
I must have bartered you must have bartered he must have bartered we must have bartered you must have bartered they must have bartered	I must have been bartering you must have been bartering he must have been bartering we must have been bartering you must have been bartering they must have been bartering

Negation

Simple form	V-ing form
I must not barter you must not barter he must not barter we must not barter you must not barter they must not barter	I must not be bartering you must not be bartering he must not be bartering we must not be bartering you must not be bartering they must not be bartering
Perfect	V-ing perfect
I must not have bartered you must not have bartered he must not have bartered we must not have bartered you must not have bartered they must not have bartered	I must not have been bartering you must not have been bartering he must not have been bartering we must not have been bartering you must not have been bartering they must not have been bartering

Interrogative form

Simple form	V-ing form
must I barter? must you barter? must he barter? must we barter? must you barter? must they barter?	must I be bartering? must you be bartering? must he be bartering? must we be bartering? must you be bartering? must they be bartering?
Perfect	V-ing perfect
must I have bartered? must you have bartered? must he have bartered? must we have bartered? must you have bartered? must they have bartered?	must I have been bartering? must you have been bartering? must he have been bartering? must we have been bartering? must you have been bartering? must they have been bartering?

Interro-negative form

Simple form	V-ing form
must I not barter? must you not barter? must he not barter? must we not barter? must you not barter? must they not barter?	must I not be bartering? must you not be bartering? must he not be bartering? must we not be bartering? must you not be bartering? must they not be bartering?
Perfect	V-ing perfect
must I not have bartered? must you not have bartered? must he not have bartered? must we not have bartered? must you not have bartered? must they not have bartered?	must I not have been bartering? must you not have been bartering? must he not have been bartering? must we not have been bartering? must you not have been bartering? must they not have been bartering?