English verb conjugation
MUST BUGGAR

Regular verb: buggar - buggared - buggared

Affirmation

Simple form	V-ing form
I must buggar you must buggar she must buggar we must buggar you must buggar they must buggar	I must be buggaring you must be buggaring she must be buggaring we must be buggaring you must be buggaring they must be buggaring
Perfect	V-ing perfect
I must have buggared you must have buggared she must have buggared we must have buggared you must have buggared they must have buggared	I must have been buggaring you must have been buggaring she must have been buggaring we must have been buggaring you must have been buggaring they must have been buggaring

Negation

Simple form	V-ing form
I mustn't buggar you mustn't buggar she mustn't buggar we mustn't buggar you mustn't buggar they mustn't buggar	I mustn't be buggaring you mustn't be buggaring she mustn't be buggaring we mustn't be buggaring you mustn't be buggaring they mustn't be buggaring
Perfect	V-ing perfect
I mustn't have buggared you mustn't have buggared she mustn't have buggared we mustn't have buggared you mustn't have buggared they mustn't have buggared	I mustn't have been buggaring you mustn't have been buggaring she mustn't have been buggaring we mustn't have been buggaring you mustn't have been buggaring they mustn't have been buggaring

Interrogative form

Simple form	V-ing form
must I buggar? must you buggar? must she buggar? must we buggar? must you buggar? must they buggar?	must I be buggaring? must you be buggaring? must she be buggaring? must we be buggaring? must you be buggaring? must they be buggaring?
Perfect	V-ing perfect
must I have buggared? must you have buggared? must she have buggared? must we have buggared? must you have buggared? must they have buggared?	must I have been buggaring? must you have been buggaring? must she have been buggaring? must we have been buggaring? must you have been buggaring? must they have been buggaring?

Interro-negative form

Simple form	V-ing form
mustn't I buggar? mustn't you buggar? mustn't she buggar? mustn't we buggar? mustn't you buggar? mustn't they buggar?	mustn't I be buggaring? mustn't you be buggaring? mustn't she be buggaring? mustn't we be buggaring? mustn't you be buggaring? mustn't they be buggaring?
Perfect	V-ing perfect
mustn't I have buggared? mustn't you have buggared? mustn't she have buggared? mustn't we have buggared? mustn't you have buggared? mustn't they have buggared?	mustn't I have been buggaring? mustn't you have been buggaring? mustn't she have been buggaring? mustn't we have been buggaring? mustn't you have been buggaring? mustn't they have been buggaring?