English verb conjugation
MUST PERUSE

Regular verb: peruse - perused - perused

Affirmation

Simple form	V-ing form
I must peruse you must peruse he must peruse we must peruse you must peruse they must peruse	I must be perusing you must be perusing he must be perusing we must be perusing you must be perusing they must be perusing
Perfect	V-ing perfect
I must have perused you must have perused he must have perused we must have perused you must have perused they must have perused	I must have been perusing you must have been perusing he must have been perusing we must have been perusing you must have been perusing they must have been perusing

Negation

Simple form	V-ing form
I mustn't peruse you mustn't peruse he mustn't peruse we mustn't peruse you mustn't peruse they mustn't peruse	I mustn't be perusing you mustn't be perusing he mustn't be perusing we mustn't be perusing you mustn't be perusing they mustn't be perusing
Perfect	V-ing perfect
I mustn't have perused you mustn't have perused he mustn't have perused we mustn't have perused you mustn't have perused they mustn't have perused	I mustn't have been perusing you mustn't have been perusing he mustn't have been perusing we mustn't have been perusing you mustn't have been perusing they mustn't have been perusing

Interrogative form

Simple form	V-ing form
must I peruse? must you peruse? must he peruse? must we peruse? must you peruse? must they peruse?	must I be perusing? must you be perusing? must he be perusing? must we be perusing? must you be perusing? must they be perusing?
Perfect	V-ing perfect
must I have perused? must you have perused? must he have perused? must we have perused? must you have perused? must they have perused?	must I have been perusing? must you have been perusing? must he have been perusing? must we have been perusing? must you have been perusing? must they have been perusing?

Interro-negative form

Simple form	V-ing form
mustn't I peruse? mustn't you peruse? mustn't he peruse? mustn't we peruse? mustn't you peruse? mustn't they peruse?	mustn't I be perusing? mustn't you be perusing? mustn't he be perusing? mustn't we be perusing? mustn't you be perusing? mustn't they be perusing?
Perfect	V-ing perfect
mustn't I have perused? mustn't you have perused? mustn't he have perused? mustn't we have perused? mustn't you have perused? mustn't they have perused?	mustn't I have been perusing? mustn't you have been perusing? mustn't he have been perusing? mustn't we have been perusing? mustn't you have been perusing? mustn't they have been perusing?