English verb conjugation
MUST SMIRK

Regular verb: smirk - smirked - smirked

Affirmation

Simple form	V-ing form
I must smirk you must smirk he must smirk we must smirk you must smirk they must smirk	I must be smirking you must be smirking he 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 he 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 he 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 must not smirk you must not smirk he must not smirk we must not smirk you must not smirk they must not smirk	I must not be smirking you must not be smirking he must not be smirking we must not be smirking you must not be smirking they must not be smirking
Perfect	V-ing perfect
I must not have smirked you must not have smirked he must not have smirked we must not have smirked you must not have smirked they must not have smirked	I must not have been smirking you must not have been smirking he must not have been smirking we must not have been smirking you must not have been smirking they must not have been smirking

Interrogative form

Simple form	V-ing form
must I smirk? must you smirk? must he smirk? must we smirk? must you smirk? must they smirk?	must I be smirking? must you be smirking? must he 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 he 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 he 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
must I not smirk? must you not smirk? must he not smirk? must we not smirk? must you not smirk? must they not smirk?	must I not be smirking? must you not be smirking? must he not be smirking? must we not be smirking? must you not be smirking? must they not be smirking?
Perfect	V-ing perfect
must I not have smirked? must you not have smirked? must he not have smirked? must we not have smirked? must you not have smirked? must they not have smirked?	must I not have been smirking? must you not have been smirking? must he not have been smirking? must we not have been smirking? must you not have been smirking? must they not have been smirking?