English verb conjugation
MUST STOOP

Regular verb: stoop - stooped - stooped

Affirmation

Simple form	V-ing form
I must stoop you must stoop he must stoop we must stoop you must stoop they must stoop	I must be stooping you must be stooping he must be stooping we must be stooping you must be stooping they must be stooping
Perfect	V-ing perfect
I must have stooped you must have stooped he must have stooped we must have stooped you must have stooped they must have stooped	I must have been stooping you must have been stooping he must have been stooping we must have been stooping you must have been stooping they must have been stooping

Negation

Simple form	V-ing form
I mustn't stoop you mustn't stoop he mustn't stoop we mustn't stoop you mustn't stoop they mustn't stoop	I mustn't be stooping you mustn't be stooping he mustn't be stooping we mustn't be stooping you mustn't be stooping they mustn't be stooping
Perfect	V-ing perfect
I mustn't have stooped you mustn't have stooped he mustn't have stooped we mustn't have stooped you mustn't have stooped they mustn't have stooped	I mustn't have been stooping you mustn't have been stooping he mustn't have been stooping we mustn't have been stooping you mustn't have been stooping they mustn't have been stooping

Interrogative form

Simple form	V-ing form
must I stoop? must you stoop? must he stoop? must we stoop? must you stoop? must they stoop?	must I be stooping? must you be stooping? must he be stooping? must we be stooping? must you be stooping? must they be stooping?
Perfect	V-ing perfect
must I have stooped? must you have stooped? must he have stooped? must we have stooped? must you have stooped? must they have stooped?	must I have been stooping? must you have been stooping? must he have been stooping? must we have been stooping? must you have been stooping? must they have been stooping?

Interro-negative form

Simple form	V-ing form
mustn't I stoop? mustn't you stoop? mustn't he stoop? mustn't we stoop? mustn't you stoop? mustn't they stoop?	mustn't I be stooping? mustn't you be stooping? mustn't he be stooping? mustn't we be stooping? mustn't you be stooping? mustn't they be stooping?
Perfect	V-ing perfect
mustn't I have stooped? mustn't you have stooped? mustn't he have stooped? mustn't we have stooped? mustn't you have stooped? mustn't they have stooped?	mustn't I have been stooping? mustn't you have been stooping? mustn't he have been stooping? mustn't we have been stooping? mustn't you have been stooping? mustn't they have been stooping?