English verb conjugation
MUST SMART

Regular verb: smart - smarted - smarted

Affirmation

Simple form	V-ing form
I must smart you must smart she must smart we must smart you must smart they must smart	I must be smarting you must be smarting she must be smarting we must be smarting you must be smarting they must be smarting
Perfect	V-ing perfect
I must have smarted you must have smarted she must have smarted we must have smarted you must have smarted they must have smarted	I must have been smarting you must have been smarting she must have been smarting we must have been smarting you must have been smarting they must have been smarting

Negation

Simple form	V-ing form
I mustn't smart you mustn't smart she mustn't smart we mustn't smart you mustn't smart they mustn't smart	I mustn't be smarting you mustn't be smarting she mustn't be smarting we mustn't be smarting you mustn't be smarting they mustn't be smarting
Perfect	V-ing perfect
I mustn't have smarted you mustn't have smarted she mustn't have smarted we mustn't have smarted you mustn't have smarted they mustn't have smarted	I mustn't have been smarting you mustn't have been smarting she mustn't have been smarting we mustn't have been smarting you mustn't have been smarting they mustn't have been smarting

Interrogative form

Simple form	V-ing form
must I smart? must you smart? must she smart? must we smart? must you smart? must they smart?	must I be smarting? must you be smarting? must she be smarting? must we be smarting? must you be smarting? must they be smarting?
Perfect	V-ing perfect
must I have smarted? must you have smarted? must she have smarted? must we have smarted? must you have smarted? must they have smarted?	must I have been smarting? must you have been smarting? must she have been smarting? must we have been smarting? must you have been smarting? must they have been smarting?

Interro-negative form

Simple form	V-ing form
mustn't I smart? mustn't you smart? mustn't she smart? mustn't we smart? mustn't you smart? mustn't they smart?	mustn't I be smarting? mustn't you be smarting? mustn't she be smarting? mustn't we be smarting? mustn't you be smarting? mustn't they be smarting?
Perfect	V-ing perfect
mustn't I have smarted? mustn't you have smarted? mustn't she have smarted? mustn't we have smarted? mustn't you have smarted? mustn't they have smarted?	mustn't I have been smarting? mustn't you have been smarting? mustn't she have been smarting? mustn't we have been smarting? mustn't you have been smarting? mustn't they have been smarting?