English verb conjugation
COULD RUMINATE

Regular verb: ruminate - ruminated - ruminated

Affirmation

Simple form	V-ing form
I could ruminate you could ruminate she could ruminate we could ruminate you could ruminate they could ruminate	I could be ruminating you could be ruminating she could be ruminating we could be ruminating you could be ruminating they could be ruminating
Perfect	V-ing perfect
I could have ruminated you could have ruminated she could have ruminated we could have ruminated you could have ruminated they could have ruminated	I could have been ruminating you could have been ruminating she could have been ruminating we could have been ruminating you could have been ruminating they could have been ruminating

Negation

Simple form	V-ing form
I couldn't ruminate you couldn't ruminate she couldn't ruminate we couldn't ruminate you couldn't ruminate they couldn't ruminate	I couldn't be ruminating you couldn't be ruminating she couldn't be ruminating we couldn't be ruminating you couldn't be ruminating they couldn't be ruminating
Perfect	V-ing perfect
I couldn't have ruminated you couldn't have ruminated she couldn't have ruminated we couldn't have ruminated you couldn't have ruminated they couldn't have ruminated	I couldn't have been ruminating you couldn't have been ruminating she couldn't have been ruminating we couldn't have been ruminating you couldn't have been ruminating they couldn't have been ruminating

Interrogative form

Simple form	V-ing form
could I ruminate? could you ruminate? could she ruminate? could we ruminate? could you ruminate? could they ruminate?	could I be ruminating? could you be ruminating? could she be ruminating? could we be ruminating? could you be ruminating? could they be ruminating?
Perfect	V-ing perfect
could I have ruminated? could you have ruminated? could she have ruminated? could we have ruminated? could you have ruminated? could they have ruminated?	could I have been ruminating? could you have been ruminating? could she have been ruminating? could we have been ruminating? could you have been ruminating? could they have been ruminating?

Interro-negative form

Simple form	V-ing form
couldn't I ruminate? couldn't you ruminate? couldn't she ruminate? couldn't we ruminate? couldn't you ruminate? couldn't they ruminate?	couldn't I be ruminating? couldn't you be ruminating? couldn't she be ruminating? couldn't we be ruminating? couldn't you be ruminating? couldn't they be ruminating?
Perfect	V-ing perfect
couldn't I have ruminated? couldn't you have ruminated? couldn't she have ruminated? couldn't we have ruminated? couldn't you have ruminated? couldn't they have ruminated?	couldn't I have been ruminating? couldn't you have been ruminating? couldn't she have been ruminating? couldn't we have been ruminating? couldn't you have been ruminating? couldn't they have been ruminating?