English verb conjugation
MUST ENCROACH

Regular verb: encroach - encroached - encroached

Affirmation

Simple form	V-ing form
I must encroach you must encroach he must encroach we must encroach you must encroach they must encroach	I must be encroaching you must be encroaching he must be encroaching we must be encroaching you must be encroaching they must be encroaching
Perfect	V-ing perfect
I must have encroached you must have encroached he must have encroached we must have encroached you must have encroached they must have encroached	I must have been encroaching you must have been encroaching he must have been encroaching we must have been encroaching you must have been encroaching they must have been encroaching

Negation

Simple form	V-ing form
I mustn't encroach you mustn't encroach he mustn't encroach we mustn't encroach you mustn't encroach they mustn't encroach	I mustn't be encroaching you mustn't be encroaching he mustn't be encroaching we mustn't be encroaching you mustn't be encroaching they mustn't be encroaching
Perfect	V-ing perfect
I mustn't have encroached you mustn't have encroached he mustn't have encroached we mustn't have encroached you mustn't have encroached they mustn't have encroached	I mustn't have been encroaching you mustn't have been encroaching he mustn't have been encroaching we mustn't have been encroaching you mustn't have been encroaching they mustn't have been encroaching

Interrogative form

Simple form	V-ing form
must I encroach? must you encroach? must he encroach? must we encroach? must you encroach? must they encroach?	must I be encroaching? must you be encroaching? must he be encroaching? must we be encroaching? must you be encroaching? must they be encroaching?
Perfect	V-ing perfect
must I have encroached? must you have encroached? must he have encroached? must we have encroached? must you have encroached? must they have encroached?	must I have been encroaching? must you have been encroaching? must he have been encroaching? must we have been encroaching? must you have been encroaching? must they have been encroaching?

Interro-negative form

Simple form	V-ing form
mustn't I encroach? mustn't you encroach? mustn't he encroach? mustn't we encroach? mustn't you encroach? mustn't they encroach?	mustn't I be encroaching? mustn't you be encroaching? mustn't he be encroaching? mustn't we be encroaching? mustn't you be encroaching? mustn't they be encroaching?
Perfect	V-ing perfect
mustn't I have encroached? mustn't you have encroached? mustn't he have encroached? mustn't we have encroached? mustn't you have encroached? mustn't they have encroached?	mustn't I have been encroaching? mustn't you have been encroaching? mustn't he have been encroaching? mustn't we have been encroaching? mustn't you have been encroaching? mustn't they have been encroaching?