English verb conjugation
MUST HAGGLE

Regular verb: haggle - haggled - haggled

Affirmation

Simple form	V-ing form
I must haggle you must haggle she must haggle we must haggle you must haggle they must haggle	I must be haggling you must be haggling she must be haggling we must be haggling you must be haggling they must be haggling
Perfect	V-ing perfect
I must have haggled you must have haggled she must have haggled we must have haggled you must have haggled they must have haggled	I must have been haggling you must have been haggling she must have been haggling we must have been haggling you must have been haggling they must have been haggling

Negation

Simple form	V-ing form
I mustn't haggle you mustn't haggle she mustn't haggle we mustn't haggle you mustn't haggle they mustn't haggle	I mustn't be haggling you mustn't be haggling she mustn't be haggling we mustn't be haggling you mustn't be haggling they mustn't be haggling
Perfect	V-ing perfect
I mustn't have haggled you mustn't have haggled she mustn't have haggled we mustn't have haggled you mustn't have haggled they mustn't have haggled	I mustn't have been haggling you mustn't have been haggling she mustn't have been haggling we mustn't have been haggling you mustn't have been haggling they mustn't have been haggling

Interrogative form

Simple form	V-ing form
must I haggle? must you haggle? must she haggle? must we haggle? must you haggle? must they haggle?	must I be haggling? must you be haggling? must she be haggling? must we be haggling? must you be haggling? must they be haggling?
Perfect	V-ing perfect
must I have haggled? must you have haggled? must she have haggled? must we have haggled? must you have haggled? must they have haggled?	must I have been haggling? must you have been haggling? must she have been haggling? must we have been haggling? must you have been haggling? must they have been haggling?

Interro-negative form

Simple form	V-ing form
mustn't I haggle? mustn't you haggle? mustn't she haggle? mustn't we haggle? mustn't you haggle? mustn't they haggle?	mustn't I be haggling? mustn't you be haggling? mustn't she be haggling? mustn't we be haggling? mustn't you be haggling? mustn't they be haggling?
Perfect	V-ing perfect
mustn't I have haggled? mustn't you have haggled? mustn't she have haggled? mustn't we have haggled? mustn't you have haggled? mustn't they have haggled?	mustn't I have been haggling? mustn't you have been haggling? mustn't she have been haggling? mustn't we have been haggling? mustn't you have been haggling? mustn't they have been haggling?