English verb conjugation
MUST SINGLE-SPACE

Regular verb: single-space - single-spaced - single-spaced

Affirmation

Simple form	V-ing form
I must single-space you must single-space he must single-space we must single-space you must single-space they must single-space	I must be single-spacing you must be single-spacing he must be single-spacing we must be single-spacing you must be single-spacing they must be single-spacing
Perfect	V-ing perfect
I must have single-spaced you must have single-spaced he must have single-spaced we must have single-spaced you must have single-spaced they must have single-spaced	I must have been single-spacing you must have been single-spacing he must have been single-spacing we must have been single-spacing you must have been single-spacing they must have been single-spacing

Negation

Simple form	V-ing form
I mustn't single-space you mustn't single-space he mustn't single-space we mustn't single-space you mustn't single-space they mustn't single-space	I mustn't be single-spacing you mustn't be single-spacing he mustn't be single-spacing we mustn't be single-spacing you mustn't be single-spacing they mustn't be single-spacing
Perfect	V-ing perfect
I mustn't have single-spaced you mustn't have single-spaced he mustn't have single-spaced we mustn't have single-spaced you mustn't have single-spaced they mustn't have single-spaced	I mustn't have been single-spacing you mustn't have been single-spacing he mustn't have been single-spacing we mustn't have been single-spacing you mustn't have been single-spacing they mustn't have been single-spacing

Interrogative form

Simple form	V-ing form
must I single-space? must you single-space? must he single-space? must we single-space? must you single-space? must they single-space?	must I be single-spacing? must you be single-spacing? must he be single-spacing? must we be single-spacing? must you be single-spacing? must they be single-spacing?
Perfect	V-ing perfect
must I have single-spaced? must you have single-spaced? must he have single-spaced? must we have single-spaced? must you have single-spaced? must they have single-spaced?	must I have been single-spacing? must you have been single-spacing? must he have been single-spacing? must we have been single-spacing? must you have been single-spacing? must they have been single-spacing?

Interro-negative form

Simple form	V-ing form
mustn't I single-space? mustn't you single-space? mustn't he single-space? mustn't we single-space? mustn't you single-space? mustn't they single-space?	mustn't I be single-spacing? mustn't you be single-spacing? mustn't he be single-spacing? mustn't we be single-spacing? mustn't you be single-spacing? mustn't they be single-spacing?
Perfect	V-ing perfect
mustn't I have single-spaced? mustn't you have single-spaced? mustn't he have single-spaced? mustn't we have single-spaced? mustn't you have single-spaced? mustn't they have single-spaced?	mustn't I have been single-spacing? mustn't you have been single-spacing? mustn't he have been single-spacing? mustn't we have been single-spacing? mustn't you have been single-spacing? mustn't they have been single-spacing?