English verb conjugation
MUST LIGNIFY

Regular verb: lignify - lignified - lignified

Affirmation

Simple form	V-ing form
I must lignify you must lignify she must lignify we must lignify you must lignify they must lignify	I must be lignifying you must be lignifying she must be lignifying we must be lignifying you must be lignifying they must be lignifying
Perfect	V-ing perfect
I must have lignified you must have lignified she must have lignified we must have lignified you must have lignified they must have lignified	I must have been lignifying you must have been lignifying she must have been lignifying we must have been lignifying you must have been lignifying they must have been lignifying

Negation

Simple form	V-ing form
I mustn't lignify you mustn't lignify she mustn't lignify we mustn't lignify you mustn't lignify they mustn't lignify	I mustn't be lignifying you mustn't be lignifying she mustn't be lignifying we mustn't be lignifying you mustn't be lignifying they mustn't be lignifying
Perfect	V-ing perfect
I mustn't have lignified you mustn't have lignified she mustn't have lignified we mustn't have lignified you mustn't have lignified they mustn't have lignified	I mustn't have been lignifying you mustn't have been lignifying she mustn't have been lignifying we mustn't have been lignifying you mustn't have been lignifying they mustn't have been lignifying

Interrogative form

Simple form	V-ing form
must I lignify? must you lignify? must she lignify? must we lignify? must you lignify? must they lignify?	must I be lignifying? must you be lignifying? must she be lignifying? must we be lignifying? must you be lignifying? must they be lignifying?
Perfect	V-ing perfect
must I have lignified? must you have lignified? must she have lignified? must we have lignified? must you have lignified? must they have lignified?	must I have been lignifying? must you have been lignifying? must she have been lignifying? must we have been lignifying? must you have been lignifying? must they have been lignifying?

Interro-negative form

Simple form	V-ing form
mustn't I lignify? mustn't you lignify? mustn't she lignify? mustn't we lignify? mustn't you lignify? mustn't they lignify?	mustn't I be lignifying? mustn't you be lignifying? mustn't she be lignifying? mustn't we be lignifying? mustn't you be lignifying? mustn't they be lignifying?
Perfect	V-ing perfect
mustn't I have lignified? mustn't you have lignified? mustn't she have lignified? mustn't we have lignified? mustn't you have lignified? mustn't they have lignified?	mustn't I have been lignifying? mustn't you have been lignifying? mustn't she have been lignifying? mustn't we have been lignifying? mustn't you have been lignifying? mustn't they have been lignifying?