English verb conjugation
MUST PERVADE

Regular verb: pervade - pervaded - pervaded

Affirmation

Simple form	V-ing form
I must pervade you must pervade he must pervade we must pervade you must pervade they must pervade	I must be pervading you must be pervading he must be pervading we must be pervading you must be pervading they must be pervading
Perfect	V-ing perfect
I must have pervaded you must have pervaded he must have pervaded we must have pervaded you must have pervaded they must have pervaded	I must have been pervading you must have been pervading he must have been pervading we must have been pervading you must have been pervading they must have been pervading

Negation

Simple form	V-ing form
I mustn't pervade you mustn't pervade he mustn't pervade we mustn't pervade you mustn't pervade they mustn't pervade	I mustn't be pervading you mustn't be pervading he mustn't be pervading we mustn't be pervading you mustn't be pervading they mustn't be pervading
Perfect	V-ing perfect
I mustn't have pervaded you mustn't have pervaded he mustn't have pervaded we mustn't have pervaded you mustn't have pervaded they mustn't have pervaded	I mustn't have been pervading you mustn't have been pervading he mustn't have been pervading we mustn't have been pervading you mustn't have been pervading they mustn't have been pervading

Interrogative form

Simple form	V-ing form
must I pervade? must you pervade? must he pervade? must we pervade? must you pervade? must they pervade?	must I be pervading? must you be pervading? must he be pervading? must we be pervading? must you be pervading? must they be pervading?
Perfect	V-ing perfect
must I have pervaded? must you have pervaded? must he have pervaded? must we have pervaded? must you have pervaded? must they have pervaded?	must I have been pervading? must you have been pervading? must he have been pervading? must we have been pervading? must you have been pervading? must they have been pervading?

Interro-negative form

Simple form	V-ing form
mustn't I pervade? mustn't you pervade? mustn't he pervade? mustn't we pervade? mustn't you pervade? mustn't they pervade?	mustn't I be pervading? mustn't you be pervading? mustn't he be pervading? mustn't we be pervading? mustn't you be pervading? mustn't they be pervading?
Perfect	V-ing perfect
mustn't I have pervaded? mustn't you have pervaded? mustn't he have pervaded? mustn't we have pervaded? mustn't you have pervaded? mustn't they have pervaded?	mustn't I have been pervading? mustn't you have been pervading? mustn't he have been pervading? mustn't we have been pervading? mustn't you have been pervading? mustn't they have been pervading?