English verb conjugation
MUST SHUCK

Regular verb: shuck - shucked - shucked

Affirmation

Simple form	V-ing form
I must shuck you must shuck he must shuck we must shuck you must shuck they must shuck	I must be shucking you must be shucking he must be shucking we must be shucking you must be shucking they must be shucking
Perfect	V-ing perfect
I must have shucked you must have shucked he must have shucked we must have shucked you must have shucked they must have shucked	I must have been shucking you must have been shucking he must have been shucking we must have been shucking you must have been shucking they must have been shucking

Negation

Simple form	V-ing form
I must not shuck you must not shuck he must not shuck we must not shuck you must not shuck they must not shuck	I must not be shucking you must not be shucking he must not be shucking we must not be shucking you must not be shucking they must not be shucking
Perfect	V-ing perfect
I must not have shucked you must not have shucked he must not have shucked we must not have shucked you must not have shucked they must not have shucked	I must not have been shucking you must not have been shucking he must not have been shucking we must not have been shucking you must not have been shucking they must not have been shucking

Interrogative form

Simple form	V-ing form
must I shuck? must you shuck? must he shuck? must we shuck? must you shuck? must they shuck?	must I be shucking? must you be shucking? must he be shucking? must we be shucking? must you be shucking? must they be shucking?
Perfect	V-ing perfect
must I have shucked? must you have shucked? must he have shucked? must we have shucked? must you have shucked? must they have shucked?	must I have been shucking? must you have been shucking? must he have been shucking? must we have been shucking? must you have been shucking? must they have been shucking?

Interro-negative form

Simple form	V-ing form
must I not shuck? must you not shuck? must he not shuck? must we not shuck? must you not shuck? must they not shuck?	must I not be shucking? must you not be shucking? must he not be shucking? must we not be shucking? must you not be shucking? must they not be shucking?
Perfect	V-ing perfect
must I not have shucked? must you not have shucked? must he not have shucked? must we not have shucked? must you not have shucked? must they not have shucked?	must I not have been shucking? must you not have been shucking? must he not have been shucking? must we not have been shucking? must you not have been shucking? must they not have been shucking?