English verb conjugation
MUST ESTOP

Regular verb: estop - estoped - estoped

Affirmation

Simple form	V-ing form
I must estop you must estop he must estop we must estop you must estop they must estop	I must be estoping you must be estoping he must be estoping we must be estoping you must be estoping they must be estoping
Perfect	V-ing perfect
I must have estoped you must have estoped he must have estoped we must have estoped you must have estoped they must have estoped	I must have been estoping you must have been estoping he must have been estoping we must have been estoping you must have been estoping they must have been estoping

Negation

Simple form	V-ing form
I mustn't estop you mustn't estop he mustn't estop we mustn't estop you mustn't estop they mustn't estop	I mustn't be estoping you mustn't be estoping he mustn't be estoping we mustn't be estoping you mustn't be estoping they mustn't be estoping
Perfect	V-ing perfect
I mustn't have estoped you mustn't have estoped he mustn't have estoped we mustn't have estoped you mustn't have estoped they mustn't have estoped	I mustn't have been estoping you mustn't have been estoping he mustn't have been estoping we mustn't have been estoping you mustn't have been estoping they mustn't have been estoping

Interrogative form

Simple form	V-ing form
must I estop? must you estop? must he estop? must we estop? must you estop? must they estop?	must I be estoping? must you be estoping? must he be estoping? must we be estoping? must you be estoping? must they be estoping?
Perfect	V-ing perfect
must I have estoped? must you have estoped? must he have estoped? must we have estoped? must you have estoped? must they have estoped?	must I have been estoping? must you have been estoping? must he have been estoping? must we have been estoping? must you have been estoping? must they have been estoping?

Interro-negative form

Simple form	V-ing form
mustn't I estop? mustn't you estop? mustn't he estop? mustn't we estop? mustn't you estop? mustn't they estop?	mustn't I be estoping? mustn't you be estoping? mustn't he be estoping? mustn't we be estoping? mustn't you be estoping? mustn't they be estoping?
Perfect	V-ing perfect
mustn't I have estoped? mustn't you have estoped? mustn't he have estoped? mustn't we have estoped? mustn't you have estoped? mustn't they have estoped?	mustn't I have been estoping? mustn't you have been estoping? mustn't he have been estoping? mustn't we have been estoping? mustn't you have been estoping? mustn't they have been estoping?