English verb conjugation
MUST REV

Regular verb: rev - reved - reved

Affirmation

Simple form	V-ing form
I must rev you must rev he must rev we must rev you must rev they must rev	I must be reving you must be reving he must be reving we must be reving you must be reving they must be reving
Perfect	V-ing perfect
I must have reved you must have reved he must have reved we must have reved you must have reved they must have reved	I must have been reving you must have been reving he must have been reving we must have been reving you must have been reving they must have been reving

Negation

Simple form	V-ing form
I mustn't rev you mustn't rev he mustn't rev we mustn't rev you mustn't rev they mustn't rev	I mustn't be reving you mustn't be reving he mustn't be reving we mustn't be reving you mustn't be reving they mustn't be reving
Perfect	V-ing perfect
I mustn't have reved you mustn't have reved he mustn't have reved we mustn't have reved you mustn't have reved they mustn't have reved	I mustn't have been reving you mustn't have been reving he mustn't have been reving we mustn't have been reving you mustn't have been reving they mustn't have been reving

Interrogative form

Simple form	V-ing form
must I rev? must you rev? must he rev? must we rev? must you rev? must they rev?	must I be reving? must you be reving? must he be reving? must we be reving? must you be reving? must they be reving?
Perfect	V-ing perfect
must I have reved? must you have reved? must he have reved? must we have reved? must you have reved? must they have reved?	must I have been reving? must you have been reving? must he have been reving? must we have been reving? must you have been reving? must they have been reving?

Interro-negative form

Simple form	V-ing form
mustn't I rev? mustn't you rev? mustn't he rev? mustn't we rev? mustn't you rev? mustn't they rev?	mustn't I be reving? mustn't you be reving? mustn't he be reving? mustn't we be reving? mustn't you be reving? mustn't they be reving?
Perfect	V-ing perfect
mustn't I have reved? mustn't you have reved? mustn't he have reved? mustn't we have reved? mustn't you have reved? mustn't they have reved?	mustn't I have been reving? mustn't you have been reving? mustn't he have been reving? mustn't we have been reving? mustn't you have been reving? mustn't they have been reving?