English verb conjugation
MUST PRESCREEN

Regular verb: prescreen - prescreened - prescreened

Affirmation

Simple form	V-ing form
I must prescreen you must prescreen she must prescreen we must prescreen you must prescreen they must prescreen	I must be prescreening you must be prescreening she must be prescreening we must be prescreening you must be prescreening they must be prescreening
Perfect	V-ing perfect
I must have prescreened you must have prescreened she must have prescreened we must have prescreened you must have prescreened they must have prescreened	I must have been prescreening you must have been prescreening she must have been prescreening we must have been prescreening you must have been prescreening they must have been prescreening

Negation

Simple form	V-ing form
I mustn't prescreen you mustn't prescreen she mustn't prescreen we mustn't prescreen you mustn't prescreen they mustn't prescreen	I mustn't be prescreening you mustn't be prescreening she mustn't be prescreening we mustn't be prescreening you mustn't be prescreening they mustn't be prescreening
Perfect	V-ing perfect
I mustn't have prescreened you mustn't have prescreened she mustn't have prescreened we mustn't have prescreened you mustn't have prescreened they mustn't have prescreened	I mustn't have been prescreening you mustn't have been prescreening she mustn't have been prescreening we mustn't have been prescreening you mustn't have been prescreening they mustn't have been prescreening

Interrogative form

Simple form	V-ing form
must I prescreen? must you prescreen? must she prescreen? must we prescreen? must you prescreen? must they prescreen?	must I be prescreening? must you be prescreening? must she be prescreening? must we be prescreening? must you be prescreening? must they be prescreening?
Perfect	V-ing perfect
must I have prescreened? must you have prescreened? must she have prescreened? must we have prescreened? must you have prescreened? must they have prescreened?	must I have been prescreening? must you have been prescreening? must she have been prescreening? must we have been prescreening? must you have been prescreening? must they have been prescreening?

Interro-negative form

Simple form	V-ing form
mustn't I prescreen? mustn't you prescreen? mustn't she prescreen? mustn't we prescreen? mustn't you prescreen? mustn't they prescreen?	mustn't I be prescreening? mustn't you be prescreening? mustn't she be prescreening? mustn't we be prescreening? mustn't you be prescreening? mustn't they be prescreening?
Perfect	V-ing perfect
mustn't I have prescreened? mustn't you have prescreened? mustn't she have prescreened? mustn't we have prescreened? mustn't you have prescreened? mustn't they have prescreened?	mustn't I have been prescreening? mustn't you have been prescreening? mustn't she have been prescreening? mustn't we have been prescreening? mustn't you have been prescreening? mustn't they have been prescreening?