English verb conjugation
COULD QUADRISECT

Regular verb: quadrisect - quadrisected - quadrisected

Affirmation

Simple form	V-ing form
I could quadrisect you could quadrisect he could quadrisect we could quadrisect you could quadrisect they could quadrisect	I could be quadrisecting you could be quadrisecting he could be quadrisecting we could be quadrisecting you could be quadrisecting they could be quadrisecting
Perfect	V-ing perfect
I could have quadrisected you could have quadrisected he could have quadrisected we could have quadrisected you could have quadrisected they could have quadrisected	I could have been quadrisecting you could have been quadrisecting he could have been quadrisecting we could have been quadrisecting you could have been quadrisecting they could have been quadrisecting

Negation

Simple form	V-ing form
I couldn't quadrisect you couldn't quadrisect he couldn't quadrisect we couldn't quadrisect you couldn't quadrisect they couldn't quadrisect	I couldn't be quadrisecting you couldn't be quadrisecting he couldn't be quadrisecting we couldn't be quadrisecting you couldn't be quadrisecting they couldn't be quadrisecting
Perfect	V-ing perfect
I couldn't have quadrisected you couldn't have quadrisected he couldn't have quadrisected we couldn't have quadrisected you couldn't have quadrisected they couldn't have quadrisected	I couldn't have been quadrisecting you couldn't have been quadrisecting he couldn't have been quadrisecting we couldn't have been quadrisecting you couldn't have been quadrisecting they couldn't have been quadrisecting

Interrogative form

Simple form	V-ing form
could I quadrisect? could you quadrisect? could he quadrisect? could we quadrisect? could you quadrisect? could they quadrisect?	could I be quadrisecting? could you be quadrisecting? could he be quadrisecting? could we be quadrisecting? could you be quadrisecting? could they be quadrisecting?
Perfect	V-ing perfect
could I have quadrisected? could you have quadrisected? could he have quadrisected? could we have quadrisected? could you have quadrisected? could they have quadrisected?	could I have been quadrisecting? could you have been quadrisecting? could he have been quadrisecting? could we have been quadrisecting? could you have been quadrisecting? could they have been quadrisecting?

Interro-negative form

Simple form	V-ing form
couldn't I quadrisect? couldn't you quadrisect? couldn't he quadrisect? couldn't we quadrisect? couldn't you quadrisect? couldn't they quadrisect?	couldn't I be quadrisecting? couldn't you be quadrisecting? couldn't he be quadrisecting? couldn't we be quadrisecting? couldn't you be quadrisecting? couldn't they be quadrisecting?
Perfect	V-ing perfect
couldn't I have quadrisected? couldn't you have quadrisected? couldn't he have quadrisected? couldn't we have quadrisected? couldn't you have quadrisected? couldn't they have quadrisected?	couldn't I have been quadrisecting? couldn't you have been quadrisecting? couldn't he have been quadrisecting? couldn't we have been quadrisecting? couldn't you have been quadrisecting? couldn't they have been quadrisecting?