English verb conjugation
MUST SMIRK

Regular verb: smirk - smirked - smirked

Affirmation

Simple form	V-ing form
I must smirk you must smirk she must smirk we must smirk you must smirk they must smirk	I must be smirking you must be smirking she must be smirking we must be smirking you must be smirking they must be smirking
Perfect	V-ing perfect
I must have smirked you must have smirked she must have smirked we must have smirked you must have smirked they must have smirked	I must have been smirking you must have been smirking she must have been smirking we must have been smirking you must have been smirking they must have been smirking

Negation

Simple form	V-ing form
I mustn't smirk you mustn't smirk she mustn't smirk we mustn't smirk you mustn't smirk they mustn't smirk	I mustn't be smirking you mustn't be smirking she mustn't be smirking we mustn't be smirking you mustn't be smirking they mustn't be smirking
Perfect	V-ing perfect
I mustn't have smirked you mustn't have smirked she mustn't have smirked we mustn't have smirked you mustn't have smirked they mustn't have smirked	I mustn't have been smirking you mustn't have been smirking she mustn't have been smirking we mustn't have been smirking you mustn't have been smirking they mustn't have been smirking

Interrogative form

Simple form	V-ing form
must I smirk? must you smirk? must she smirk? must we smirk? must you smirk? must they smirk?	must I be smirking? must you be smirking? must she be smirking? must we be smirking? must you be smirking? must they be smirking?
Perfect	V-ing perfect
must I have smirked? must you have smirked? must she have smirked? must we have smirked? must you have smirked? must they have smirked?	must I have been smirking? must you have been smirking? must she have been smirking? must we have been smirking? must you have been smirking? must they have been smirking?

Interro-negative form

Simple form	V-ing form
mustn't I smirk? mustn't you smirk? mustn't she smirk? mustn't we smirk? mustn't you smirk? mustn't they smirk?	mustn't I be smirking? mustn't you be smirking? mustn't she be smirking? mustn't we be smirking? mustn't you be smirking? mustn't they be smirking?
Perfect	V-ing perfect
mustn't I have smirked? mustn't you have smirked? mustn't she have smirked? mustn't we have smirked? mustn't you have smirked? mustn't they have smirked?	mustn't I have been smirking? mustn't you have been smirking? mustn't she have been smirking? mustn't we have been smirking? mustn't you have been smirking? mustn't they have been smirking?