English verb conjugation
COULD SUBSIDE

Regular verb: subside - subsided - subsided

Affirmation

Simple form	V-ing form
I could subside you could subside she could subside we could subside you could subside they could subside	I could be subsiding you could be subsiding she could be subsiding we could be subsiding you could be subsiding they could be subsiding
Perfect	V-ing perfect
I could have subsided you could have subsided she could have subsided we could have subsided you could have subsided they could have subsided	I could have been subsiding you could have been subsiding she could have been subsiding we could have been subsiding you could have been subsiding they could have been subsiding

Negation

Simple form	V-ing form
I could not subside you could not subside she could not subside we could not subside you could not subside they could not subside	I could not be subsiding you could not be subsiding she could not be subsiding we could not be subsiding you could not be subsiding they could not be subsiding
Perfect	V-ing perfect
I could not have subsided you could not have subsided she could not have subsided we could not have subsided you could not have subsided they could not have subsided	I could not have been subsiding you could not have been subsiding she could not have been subsiding we could not have been subsiding you could not have been subsiding they could not have been subsiding

Interrogative form

Simple form	V-ing form
could I subside? could you subside? could she subside? could we subside? could you subside? could they subside?	could I be subsiding? could you be subsiding? could she be subsiding? could we be subsiding? could you be subsiding? could they be subsiding?
Perfect	V-ing perfect
could I have subsided? could you have subsided? could she have subsided? could we have subsided? could you have subsided? could they have subsided?	could I have been subsiding? could you have been subsiding? could she have been subsiding? could we have been subsiding? could you have been subsiding? could they have been subsiding?

Interro-negative form

Simple form	V-ing form
could I not subside? could you not subside? could she not subside? could we not subside? could you not subside? could they not subside?	could I not be subsiding? could you not be subsiding? could she not be subsiding? could we not be subsiding? could you not be subsiding? could they not be subsiding?
Perfect	V-ing perfect
could I not have subsided? could you not have subsided? could she not have subsided? could we not have subsided? could you not have subsided? could they not have subsided?	could I not have been subsiding? could you not have been subsiding? could she not have been subsiding? could we not have been subsiding? could you not have been subsiding? could they not have been subsiding?