English verb conjugation
MUST SECEDE

Regular verb: secede - seceded - seceded

Affirmation

Simple form	V-ing form
I must secede you must secede he must secede we must secede you must secede they must secede	I must be seceding you must be seceding he must be seceding we must be seceding you must be seceding they must be seceding
Perfect	V-ing perfect
I must have seceded you must have seceded he must have seceded we must have seceded you must have seceded they must have seceded	I must have been seceding you must have been seceding he must have been seceding we must have been seceding you must have been seceding they must have been seceding

Negation

Simple form	V-ing form
I must not secede you must not secede he must not secede we must not secede you must not secede they must not secede	I must not be seceding you must not be seceding he must not be seceding we must not be seceding you must not be seceding they must not be seceding
Perfect	V-ing perfect
I must not have seceded you must not have seceded he must not have seceded we must not have seceded you must not have seceded they must not have seceded	I must not have been seceding you must not have been seceding he must not have been seceding we must not have been seceding you must not have been seceding they must not have been seceding

Interrogative form

Simple form	V-ing form
must I secede? must you secede? must he secede? must we secede? must you secede? must they secede?	must I be seceding? must you be seceding? must he be seceding? must we be seceding? must you be seceding? must they be seceding?
Perfect	V-ing perfect
must I have seceded? must you have seceded? must he have seceded? must we have seceded? must you have seceded? must they have seceded?	must I have been seceding? must you have been seceding? must he have been seceding? must we have been seceding? must you have been seceding? must they have been seceding?

Interro-negative form

Simple form	V-ing form
must I not secede? must you not secede? must he not secede? must we not secede? must you not secede? must they not secede?	must I not be seceding? must you not be seceding? must he not be seceding? must we not be seceding? must you not be seceding? must they not be seceding?
Perfect	V-ing perfect
must I not have seceded? must you not have seceded? must he not have seceded? must we not have seceded? must you not have seceded? must they not have seceded?	must I not have been seceding? must you not have been seceding? must he not have been seceding? must we not have been seceding? must you not have been seceding? must they not have been seceding?