English verb conjugation
MUST DOUBLE-STOP

Regular verb: double-stop - double-stoped - double-stoped

Affirmation

Simple form	V-ing form
I must double-stop you must double-stop he must double-stop we must double-stop you must double-stop they must double-stop	I must be double-stoping you must be double-stoping he must be double-stoping we must be double-stoping you must be double-stoping they must be double-stoping
Perfect	V-ing perfect
I must have double-stoped you must have double-stoped he must have double-stoped we must have double-stoped you must have double-stoped they must have double-stoped	I must have been double-stoping you must have been double-stoping he must have been double-stoping we must have been double-stoping you must have been double-stoping they must have been double-stoping

Negation

Simple form	V-ing form
I mustn't double-stop you mustn't double-stop he mustn't double-stop we mustn't double-stop you mustn't double-stop they mustn't double-stop	I mustn't be double-stoping you mustn't be double-stoping he mustn't be double-stoping we mustn't be double-stoping you mustn't be double-stoping they mustn't be double-stoping
Perfect	V-ing perfect
I mustn't have double-stoped you mustn't have double-stoped he mustn't have double-stoped we mustn't have double-stoped you mustn't have double-stoped they mustn't have double-stoped	I mustn't have been double-stoping you mustn't have been double-stoping he mustn't have been double-stoping we mustn't have been double-stoping you mustn't have been double-stoping they mustn't have been double-stoping

Interrogative form

Simple form	V-ing form
must I double-stop? must you double-stop? must he double-stop? must we double-stop? must you double-stop? must they double-stop?	must I be double-stoping? must you be double-stoping? must he be double-stoping? must we be double-stoping? must you be double-stoping? must they be double-stoping?
Perfect	V-ing perfect
must I have double-stoped? must you have double-stoped? must he have double-stoped? must we have double-stoped? must you have double-stoped? must they have double-stoped?	must I have been double-stoping? must you have been double-stoping? must he have been double-stoping? must we have been double-stoping? must you have been double-stoping? must they have been double-stoping?

Interro-negative form

Simple form	V-ing form
mustn't I double-stop? mustn't you double-stop? mustn't he double-stop? mustn't we double-stop? mustn't you double-stop? mustn't they double-stop?	mustn't I be double-stoping? mustn't you be double-stoping? mustn't he be double-stoping? mustn't we be double-stoping? mustn't you be double-stoping? mustn't they be double-stoping?
Perfect	V-ing perfect
mustn't I have double-stoped? mustn't you have double-stoped? mustn't he have double-stoped? mustn't we have double-stoped? mustn't you have double-stoped? mustn't they have double-stoped?	mustn't I have been double-stoping? mustn't you have been double-stoping? mustn't he have been double-stoping? mustn't we have been double-stoping? mustn't you have been double-stoping? mustn't they have been double-stoping?