could goof
Regular verb: goof - goofed- goofed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?