English verb conjugation
MUST FERMENT

Regular verb: ferment - fermented - fermented

Affirmation

Simple form	V-ing form
I must ferment you must ferment he must ferment we must ferment you must ferment they must ferment	I must be fermenting you must be fermenting he must be fermenting we must be fermenting you must be fermenting they must be fermenting
Perfect	V-ing perfect
I must have fermented you must have fermented he must have fermented we must have fermented you must have fermented they must have fermented	I must have been fermenting you must have been fermenting he must have been fermenting we must have been fermenting you must have been fermenting they must have been fermenting

Negation

Simple form	V-ing form
I must not ferment you must not ferment he must not ferment we must not ferment you must not ferment they must not ferment	I must not be fermenting you must not be fermenting he must not be fermenting we must not be fermenting you must not be fermenting they must not be fermenting
Perfect	V-ing perfect
I must not have fermented you must not have fermented he must not have fermented we must not have fermented you must not have fermented they must not have fermented	I must not have been fermenting you must not have been fermenting he must not have been fermenting we must not have been fermenting you must not have been fermenting they must not have been fermenting

Interrogative form

Simple form	V-ing form
must I ferment? must you ferment? must he ferment? must we ferment? must you ferment? must they ferment?	must I be fermenting? must you be fermenting? must he be fermenting? must we be fermenting? must you be fermenting? must they be fermenting?
Perfect	V-ing perfect
must I have fermented? must you have fermented? must he have fermented? must we have fermented? must you have fermented? must they have fermented?	must I have been fermenting? must you have been fermenting? must he have been fermenting? must we have been fermenting? must you have been fermenting? must they have been fermenting?

Interro-negative form

Simple form	V-ing form
must I not ferment? must you not ferment? must he not ferment? must we not ferment? must you not ferment? must they not ferment?	must I not be fermenting? must you not be fermenting? must he not be fermenting? must we not be fermenting? must you not be fermenting? must they not be fermenting?
Perfect	V-ing perfect
must I not have fermented? must you not have fermented? must he not have fermented? must we not have fermented? must you not have fermented? must they not have fermented?	must I not have been fermenting? must you not have been fermenting? must he not have been fermenting? must we not have been fermenting? must you not have been fermenting? must they not have been fermenting?