English verb conjugation
MUST PREEMPT

Regular verb: preempt - preempted - preempted

Affirmation

Simple form	V-ing form
I must preempt you must preempt she must preempt we must preempt you must preempt they must preempt	I must be preempting you must be preempting she must be preempting we must be preempting you must be preempting they must be preempting
Perfect	V-ing perfect
I must have preempted you must have preempted she must have preempted we must have preempted you must have preempted they must have preempted	I must have been preempting you must have been preempting she must have been preempting we must have been preempting you must have been preempting they must have been preempting

Negation

Simple form	V-ing form
I mustn't preempt you mustn't preempt she mustn't preempt we mustn't preempt you mustn't preempt they mustn't preempt	I mustn't be preempting you mustn't be preempting she mustn't be preempting we mustn't be preempting you mustn't be preempting they mustn't be preempting
Perfect	V-ing perfect
I mustn't have preempted you mustn't have preempted she mustn't have preempted we mustn't have preempted you mustn't have preempted they mustn't have preempted	I mustn't have been preempting you mustn't have been preempting she mustn't have been preempting we mustn't have been preempting you mustn't have been preempting they mustn't have been preempting

Interrogative form

Simple form	V-ing form
must I preempt? must you preempt? must she preempt? must we preempt? must you preempt? must they preempt?	must I be preempting? must you be preempting? must she be preempting? must we be preempting? must you be preempting? must they be preempting?
Perfect	V-ing perfect
must I have preempted? must you have preempted? must she have preempted? must we have preempted? must you have preempted? must they have preempted?	must I have been preempting? must you have been preempting? must she have been preempting? must we have been preempting? must you have been preempting? must they have been preempting?

Interro-negative form

Simple form	V-ing form
mustn't I preempt? mustn't you preempt? mustn't she preempt? mustn't we preempt? mustn't you preempt? mustn't they preempt?	mustn't I be preempting? mustn't you be preempting? mustn't she be preempting? mustn't we be preempting? mustn't you be preempting? mustn't they be preempting?
Perfect	V-ing perfect
mustn't I have preempted? mustn't you have preempted? mustn't she have preempted? mustn't we have preempted? mustn't you have preempted? mustn't they have preempted?	mustn't I have been preempting? mustn't you have been preempting? mustn't she have been preempting? mustn't we have been preempting? mustn't you have been preempting? mustn't they have been preempting?