English verb conjugation
COULD GOOF

Regular verb: goof - goofed - goofed

Affirmation

Simple form	V-ing form
I could goof you could goof she could goof we could goof you could goof they could goof	I could be goofing you could be goofing she could be goofing we could be goofing you could be goofing they could be goofing
Perfect	V-ing perfect
I could have goofed you could have goofed she could have goofed we could have goofed you could have goofed they could have goofed	I could have been goofing you could have been goofing she could have been goofing we could have been goofing you could have been goofing they could have been goofing

Negation

Simple form	V-ing form
I couldn't goof you couldn't goof she couldn't goof we couldn't goof you couldn't goof they couldn't goof	I couldn't be goofing you couldn't be goofing she couldn't be goofing we couldn't be goofing you couldn't be goofing they couldn't be goofing
Perfect	V-ing perfect
I couldn't have goofed you couldn't have goofed she couldn't have goofed we couldn't have goofed you couldn't have goofed they couldn't have goofed	I couldn't have been goofing you couldn't have been goofing she couldn't have been goofing we couldn't have been goofing you couldn't have been goofing they couldn't have been goofing

Interrogative form

Simple form	V-ing form
could I goof? could you goof? could she goof? could we goof? could you goof? could they goof?	could I be goofing? could you be goofing? could she be goofing? could we be goofing? could you be goofing? could they be goofing?
Perfect	V-ing perfect
could I have goofed? could you have goofed? could she have goofed? could we have goofed? could you have goofed? could they have goofed?	could I have been goofing? could you have been goofing? could she have been goofing? could we have been goofing? could you have been goofing? could they have been goofing?

Interro-negative form

Simple form	V-ing form
couldn't I goof? couldn't you goof? couldn't she goof? couldn't we goof? couldn't you goof? couldn't they goof?	couldn't I be goofing? couldn't you be goofing? couldn't she be goofing? couldn't we be goofing? couldn't you be goofing? couldn't they be goofing?
Perfect	V-ing perfect
couldn't I have goofed? couldn't you have goofed? couldn't she have goofed? couldn't we have goofed? couldn't you have goofed? couldn't they have goofed?	couldn't I have been goofing? couldn't you have been goofing? couldn't she have been goofing? couldn't we have been goofing? couldn't you have been goofing? couldn't they have been goofing?