English verb conjugation
COULD SECEDE

Regular verb: secede - seceded - seceded

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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