English verb conjugation
MUST SPARKLE

Regular verb: sparkle - sparkled - sparkled

Affirmation

Simple form	V-ing form
I must sparkle you must sparkle she must sparkle we must sparkle you must sparkle they must sparkle	I must be sparkling you must be sparkling she must be sparkling we must be sparkling you must be sparkling they must be sparkling
Perfect	V-ing perfect
I must have sparkled you must have sparkled she must have sparkled we must have sparkled you must have sparkled they must have sparkled	I must have been sparkling you must have been sparkling she must have been sparkling we must have been sparkling you must have been sparkling they must have been sparkling

Negation

Simple form	V-ing form
I mustn't sparkle you mustn't sparkle she mustn't sparkle we mustn't sparkle you mustn't sparkle they mustn't sparkle	I mustn't be sparkling you mustn't be sparkling she mustn't be sparkling we mustn't be sparkling you mustn't be sparkling they mustn't be sparkling
Perfect	V-ing perfect
I mustn't have sparkled you mustn't have sparkled she mustn't have sparkled we mustn't have sparkled you mustn't have sparkled they mustn't have sparkled	I mustn't have been sparkling you mustn't have been sparkling she mustn't have been sparkling we mustn't have been sparkling you mustn't have been sparkling they mustn't have been sparkling

Interrogative form

Simple form	V-ing form
must I sparkle? must you sparkle? must she sparkle? must we sparkle? must you sparkle? must they sparkle?	must I be sparkling? must you be sparkling? must she be sparkling? must we be sparkling? must you be sparkling? must they be sparkling?
Perfect	V-ing perfect
must I have sparkled? must you have sparkled? must she have sparkled? must we have sparkled? must you have sparkled? must they have sparkled?	must I have been sparkling? must you have been sparkling? must she have been sparkling? must we have been sparkling? must you have been sparkling? must they have been sparkling?

Interro-negative form

Simple form	V-ing form
mustn't I sparkle? mustn't you sparkle? mustn't she sparkle? mustn't we sparkle? mustn't you sparkle? mustn't they sparkle?	mustn't I be sparkling? mustn't you be sparkling? mustn't she be sparkling? mustn't we be sparkling? mustn't you be sparkling? mustn't they be sparkling?
Perfect	V-ing perfect
mustn't I have sparkled? mustn't you have sparkled? mustn't she have sparkled? mustn't we have sparkled? mustn't you have sparkled? mustn't they have sparkled?	mustn't I have been sparkling? mustn't you have been sparkling? mustn't she have been sparkling? mustn't we have been sparkling? mustn't you have been sparkling? mustn't they have been sparkling?