English verb conjugation
MUST SMART

Regular verb: smart - smarted - smarted

Affirmation

Simple form	V-ing form
I must smart you must smart he must smart we must smart you must smart they must smart	I must be smarting you must be smarting he 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 he 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 he 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 he 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 he 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 he 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 he 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 he smart? must we smart? must you smart? must they smart?	must I be smarting? must you be smarting? must he 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 he 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 he 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 he 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 he 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 he 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 he have been smarting? mustn't we have been smarting? mustn't you have been smarting? mustn't they have been smarting?