English verb conjugation
MUST SPURT

Regular verb: spurt - spurted - spurted

Affirmation

Simple form	V-ing form
I must spurt you must spurt he must spurt we must spurt you must spurt they must spurt	I must be spurting you must be spurting he must be spurting we must be spurting you must be spurting they must be spurting
Perfect	V-ing perfect
I must have spurted you must have spurted he must have spurted we must have spurted you must have spurted they must have spurted	I must have been spurting you must have been spurting he must have been spurting we must have been spurting you must have been spurting they must have been spurting

Negation

Simple form	V-ing form
I mustn't spurt you mustn't spurt he mustn't spurt we mustn't spurt you mustn't spurt they mustn't spurt	I mustn't be spurting you mustn't be spurting he mustn't be spurting we mustn't be spurting you mustn't be spurting they mustn't be spurting
Perfect	V-ing perfect
I mustn't have spurted you mustn't have spurted he mustn't have spurted we mustn't have spurted you mustn't have spurted they mustn't have spurted	I mustn't have been spurting you mustn't have been spurting he mustn't have been spurting we mustn't have been spurting you mustn't have been spurting they mustn't have been spurting

Interrogative form

Simple form	V-ing form
must I spurt? must you spurt? must he spurt? must we spurt? must you spurt? must they spurt?	must I be spurting? must you be spurting? must he be spurting? must we be spurting? must you be spurting? must they be spurting?
Perfect	V-ing perfect
must I have spurted? must you have spurted? must he have spurted? must we have spurted? must you have spurted? must they have spurted?	must I have been spurting? must you have been spurting? must he have been spurting? must we have been spurting? must you have been spurting? must they have been spurting?

Interro-negative form

Simple form	V-ing form
mustn't I spurt? mustn't you spurt? mustn't he spurt? mustn't we spurt? mustn't you spurt? mustn't they spurt?	mustn't I be spurting? mustn't you be spurting? mustn't he be spurting? mustn't we be spurting? mustn't you be spurting? mustn't they be spurting?
Perfect	V-ing perfect
mustn't I have spurted? mustn't you have spurted? mustn't he have spurted? mustn't we have spurted? mustn't you have spurted? mustn't they have spurted?	mustn't I have been spurting? mustn't you have been spurting? mustn't he have been spurting? mustn't we have been spurting? mustn't you have been spurting? mustn't they have been spurting?