English verb conjugation
MUST SPACE

Regular verb: space - spaced - spaced

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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