I can goof you can goof she can goof we can goof you can goof they can goof
Forma con V-ing
I can be goofing you can be goofing she can be goofing we can be goofing you can be goofing they can be goofing
Perfecto
I can have goofed you can have goofed she can have goofed we can have goofed you can have goofed they can have goofed
Perfecto con V-ing
I can have been goofing you can have been goofing she can have been goofing we can have been goofing you can have been goofing they can have been goofing
Negación
Forma simple
I can't goof you can't goof she can't goof we can't goof you can't goof they can't goof
Forma con V-ing
I can't be goofing you can't be goofing she can't be goofing we can't be goofing you can't be goofing they can't be goofing
Perfecto
I can't have goofed you can't have goofed she can't have goofed we can't have goofed you can't have goofed they can't have goofed
Perfecto con V-ing
I can't have been goofing you can't have been goofing she can't have been goofing we can't have been goofing you can't have been goofing they can't have been goofing
Forma interrogativa
Forma simple
can I goof? can you goof? can she goof? can we goof? can you goof? can they goof?
Forma con V-ing
can I be goofing? can you be goofing? can she be goofing? can we be goofing? can you be goofing? can they be goofing?
Perfecto
can I have goofed? can you have goofed? can she have goofed? can we have goofed? can you have goofed? can they have goofed?
Perfecto con V-ing
can I have been goofing? can you have been goofing? can she have been goofing? can we have been goofing? can you have been goofing? can they have been goofing?
Forma interro-negativa
Forma simple
can't I goof? can't you goof? can't she goof? can't we goof? can't you goof? can't they goof?
Forma con V-ing
can't I be goofing? can't you be goofing? can't she be goofing? can't we be goofing? can't you be goofing? can't they be goofing?
Perfecto
can't I have goofed? can't you have goofed? can't she have goofed? can't we have goofed? can't you have goofed? can't they have goofed?
Perfecto con V-ing
can't I have been goofing? can't you have been goofing? can't she have been goofing? can't we have been goofing? can't you have been goofing? can't they have been goofing?