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 couldn't secede you couldn't secede he couldn't secede we couldn't secede you couldn't secede they couldn't secede	I couldn't be seceding you couldn't be seceding he couldn't be seceding we couldn't be seceding you couldn't be seceding they couldn't be seceding
Perfect	V-ing perfect
I couldn't have seceded you couldn't have seceded he couldn't have seceded we couldn't have seceded you couldn't have seceded they couldn't have seceded	I couldn't have been seceding you couldn't have been seceding he couldn't have been seceding we couldn't have been seceding you couldn't have been seceding they couldn't 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
couldn't I secede? couldn't you secede? couldn't he secede? couldn't we secede? couldn't you secede? couldn't they secede?	couldn't I be seceding? couldn't you be seceding? couldn't he be seceding? couldn't we be seceding? couldn't you be seceding? couldn't they be seceding?
Perfect	V-ing perfect
couldn't I have seceded? couldn't you have seceded? couldn't he have seceded? couldn't we have seceded? couldn't you have seceded? couldn't they have seceded?	couldn't I have been seceding? couldn't you have been seceding? couldn't he have been seceding? couldn't we have been seceding? couldn't you have been seceding? couldn't they have been seceding?