English verb conjugation
MUST VITIATE

Regular verb: vitiate - vitiated - vitiated

Affirmation

Simple form	V-ing form
I must vitiate you must vitiate he must vitiate we must vitiate you must vitiate they must vitiate	I must be vitiating you must be vitiating he must be vitiating we must be vitiating you must be vitiating they must be vitiating
Perfect	V-ing perfect
I must have vitiated you must have vitiated he must have vitiated we must have vitiated you must have vitiated they must have vitiated	I must have been vitiating you must have been vitiating he must have been vitiating we must have been vitiating you must have been vitiating they must have been vitiating

Negation

Simple form	V-ing form
I mustn't vitiate you mustn't vitiate he mustn't vitiate we mustn't vitiate you mustn't vitiate they mustn't vitiate	I mustn't be vitiating you mustn't be vitiating he mustn't be vitiating we mustn't be vitiating you mustn't be vitiating they mustn't be vitiating
Perfect	V-ing perfect
I mustn't have vitiated you mustn't have vitiated he mustn't have vitiated we mustn't have vitiated you mustn't have vitiated they mustn't have vitiated	I mustn't have been vitiating you mustn't have been vitiating he mustn't have been vitiating we mustn't have been vitiating you mustn't have been vitiating they mustn't have been vitiating

Interrogative form

Simple form	V-ing form
must I vitiate? must you vitiate? must he vitiate? must we vitiate? must you vitiate? must they vitiate?	must I be vitiating? must you be vitiating? must he be vitiating? must we be vitiating? must you be vitiating? must they be vitiating?
Perfect	V-ing perfect
must I have vitiated? must you have vitiated? must he have vitiated? must we have vitiated? must you have vitiated? must they have vitiated?	must I have been vitiating? must you have been vitiating? must he have been vitiating? must we have been vitiating? must you have been vitiating? must they have been vitiating?

Interro-negative form

Simple form	V-ing form
mustn't I vitiate? mustn't you vitiate? mustn't he vitiate? mustn't we vitiate? mustn't you vitiate? mustn't they vitiate?	mustn't I be vitiating? mustn't you be vitiating? mustn't he be vitiating? mustn't we be vitiating? mustn't you be vitiating? mustn't they be vitiating?
Perfect	V-ing perfect
mustn't I have vitiated? mustn't you have vitiated? mustn't he have vitiated? mustn't we have vitiated? mustn't you have vitiated? mustn't they have vitiated?	mustn't I have been vitiating? mustn't you have been vitiating? mustn't he have been vitiating? mustn't we have been vitiating? mustn't you have been vitiating? mustn't they have been vitiating?