must secede
Verbe régulier : secede - seceded- seceded
Traduction française : faire sécession - se séparer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must secede
you must secede
she must secede
we must secede
you must secede
they must secede 	I must be seceding
you must be seceding
she must be seceding
we must be seceding
you must be seceding
they must be seceding	I must have seceded
you must have seceded
she 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
she must have been seceding
we must have been seceding
you must have been seceding
they must have been seceding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not secede
you must not secede
she 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
she must not be seceding
we must not be seceding
you must not be seceding
they must not be seceding	I must not have seceded
you must not have seceded
she 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
she must not have been seceding
we must not have been seceding
you must not have been seceding
they must not have been seceding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I secede?
must you secede?
must she secede?
must we secede?
must you secede?
must they secede? 	must I be seceding?
must you be seceding?
must she be seceding?
must we be seceding?
must you be seceding?
must they be seceding? 	must I have seceded?
must you have seceded?
must she 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 she have been seceding?
must we have been seceding?
must you have been seceding?
must they have been seceding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not secede?
must you not secede?
must she 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 she not be seceding?
must we not be seceding?
must you not be seceding?
must they not be seceding? 	must I not have seceded?
must you not have seceded?
must she 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 she not have been seceding?
must we not have been seceding?
must you not have been seceding?
must they not have been seceding?