English verb conjugation
COULD RECEDE

Regular verb: recede - receded - receded

Affirmation

Simple form	V-ing form
I could recede you could recede he could recede we could recede you could recede they could recede	I could be receding you could be receding he could be receding we could be receding you could be receding they could be receding
Perfect	V-ing perfect
I could have receded you could have receded he could have receded we could have receded you could have receded they could have receded	I could have been receding you could have been receding he could have been receding we could have been receding you could have been receding they could have been receding

Negation

Simple form	V-ing form
I could not recede you could not recede he could not recede we could not recede you could not recede they could not recede	I could not be receding you could not be receding he could not be receding we could not be receding you could not be receding they could not be receding
Perfect	V-ing perfect
I could not have receded you could not have receded he could not have receded we could not have receded you could not have receded they could not have receded	I could not have been receding you could not have been receding he could not have been receding we could not have been receding you could not have been receding they could not have been receding

Interrogative form

Simple form	V-ing form
could I recede? could you recede? could he recede? could we recede? could you recede? could they recede?	could I be receding? could you be receding? could he be receding? could we be receding? could you be receding? could they be receding?
Perfect	V-ing perfect
could I have receded? could you have receded? could he have receded? could we have receded? could you have receded? could they have receded?	could I have been receding? could you have been receding? could he have been receding? could we have been receding? could you have been receding? could they have been receding?

Interro-negative form

Simple form	V-ing form
could I not recede? could you not recede? could he not recede? could we not recede? could you not recede? could they not recede?	could I not be receding? could you not be receding? could he not be receding? could we not be receding? could you not be receding? could they not be receding?
Perfect	V-ing perfect
could I not have receded? could you not have receded? could he not have receded? could we not have receded? could you not have receded? could they not have receded?	could I not have been receding? could you not have been receding? could he not have been receding? could we not have been receding? could you not have been receding? could they not have been receding?