English verb conjugation
MUST PREAPPROVE

Regular verb: preapprove - preapproved - preapproved

Affirmation

Simple form	V-ing form
I must preapprove you must preapprove he must preapprove we must preapprove you must preapprove they must preapprove	I must be preapproving you must be preapproving he must be preapproving we must be preapproving you must be preapproving they must be preapproving
Perfect	V-ing perfect
I must have preapproved you must have preapproved he must have preapproved we must have preapproved you must have preapproved they must have preapproved	I must have been preapproving you must have been preapproving he must have been preapproving we must have been preapproving you must have been preapproving they must have been preapproving

Negation

Simple form	V-ing form
I mustn't preapprove you mustn't preapprove he mustn't preapprove we mustn't preapprove you mustn't preapprove they mustn't preapprove	I mustn't be preapproving you mustn't be preapproving he mustn't be preapproving we mustn't be preapproving you mustn't be preapproving they mustn't be preapproving
Perfect	V-ing perfect
I mustn't have preapproved you mustn't have preapproved he mustn't have preapproved we mustn't have preapproved you mustn't have preapproved they mustn't have preapproved	I mustn't have been preapproving you mustn't have been preapproving he mustn't have been preapproving we mustn't have been preapproving you mustn't have been preapproving they mustn't have been preapproving

Interrogative form

Simple form	V-ing form
must I preapprove? must you preapprove? must he preapprove? must we preapprove? must you preapprove? must they preapprove?	must I be preapproving? must you be preapproving? must he be preapproving? must we be preapproving? must you be preapproving? must they be preapproving?
Perfect	V-ing perfect
must I have preapproved? must you have preapproved? must he have preapproved? must we have preapproved? must you have preapproved? must they have preapproved?	must I have been preapproving? must you have been preapproving? must he have been preapproving? must we have been preapproving? must you have been preapproving? must they have been preapproving?

Interro-negative form

Simple form	V-ing form
mustn't I preapprove? mustn't you preapprove? mustn't he preapprove? mustn't we preapprove? mustn't you preapprove? mustn't they preapprove?	mustn't I be preapproving? mustn't you be preapproving? mustn't he be preapproving? mustn't we be preapproving? mustn't you be preapproving? mustn't they be preapproving?
Perfect	V-ing perfect
mustn't I have preapproved? mustn't you have preapproved? mustn't he have preapproved? mustn't we have preapproved? mustn't you have preapproved? mustn't they have preapproved?	mustn't I have been preapproving? mustn't you have been preapproving? mustn't he have been preapproving? mustn't we have been preapproving? mustn't you have been preapproving? mustn't they have been preapproving?