English verb conjugation
COULD ANTECEDE

Regular verb: antecede - anteceded - anteceded

Affirmation

Simple form	V-ing form
I could antecede you could antecede she could antecede we could antecede you could antecede they could antecede	I could be anteceding you could be anteceding she could be anteceding we could be anteceding you could be anteceding they could be anteceding
Perfect	V-ing perfect
I could have anteceded you could have anteceded she could have anteceded we could have anteceded you could have anteceded they could have anteceded	I could have been anteceding you could have been anteceding she could have been anteceding we could have been anteceding you could have been anteceding they could have been anteceding

Negation

Simple form	V-ing form
I could not antecede you could not antecede she could not antecede we could not antecede you could not antecede they could not antecede	I could not be anteceding you could not be anteceding she could not be anteceding we could not be anteceding you could not be anteceding they could not be anteceding
Perfect	V-ing perfect
I could not have anteceded you could not have anteceded she could not have anteceded we could not have anteceded you could not have anteceded they could not have anteceded	I could not have been anteceding you could not have been anteceding she could not have been anteceding we could not have been anteceding you could not have been anteceding they could not have been anteceding

Interrogative form

Simple form	V-ing form
could I antecede? could you antecede? could she antecede? could we antecede? could you antecede? could they antecede?	could I be anteceding? could you be anteceding? could she be anteceding? could we be anteceding? could you be anteceding? could they be anteceding?
Perfect	V-ing perfect
could I have anteceded? could you have anteceded? could she have anteceded? could we have anteceded? could you have anteceded? could they have anteceded?	could I have been anteceding? could you have been anteceding? could she have been anteceding? could we have been anteceding? could you have been anteceding? could they have been anteceding?

Interro-negative form

Simple form	V-ing form
could I not antecede? could you not antecede? could she not antecede? could we not antecede? could you not antecede? could they not antecede?	could I not be anteceding? could you not be anteceding? could she not be anteceding? could we not be anteceding? could you not be anteceding? could they not be anteceding?
Perfect	V-ing perfect
could I not have anteceded? could you not have anteceded? could she not have anteceded? could we not have anteceded? could you not have anteceded? could they not have anteceded?	could I not have been anteceding? could you not have been anteceding? could she not have been anteceding? could we not have been anteceding? could you not have been anteceding? could they not have been anteceding?