I may goof you may goof he may goof we may goof you may goof they may goof
V-ing form
I may be goofing you may be goofing he may be goofing we may be goofing you may be goofing they may be goofing
Perfect
I may have goofed you may have goofed he may have goofed we may have goofed you may have goofed they may have goofed
V-ing perfect
I may have been goofing you may have been goofing he may have been goofing we may have been goofing you may have been goofing they may have been goofing
Negation
Simple form
I may not goof you may not goof he may not goof we may not goof you may not goof they may not goof
V-ing form
I may not be goofing you may not be goofing he may not be goofing we may not be goofing you may not be goofing they may not be goofing
Perfect
I may not have goofed you may not have goofed he may not have goofed we may not have goofed you may not have goofed they may not have goofed
V-ing perfect
I may not have been goofing you may not have been goofing he may not have been goofing we may not have been goofing you may not have been goofing they may not have been goofing
Interrogative form
Simple form
may I goof? may you goof? may he goof? may we goof? may you goof? may they goof?
V-ing form
may I be goofing? may you be goofing? may he be goofing? may we be goofing? may you be goofing? may they be goofing?
Perfect
may I have goofed? may you have goofed? may he have goofed? may we have goofed? may you have goofed? may they have goofed?
V-ing perfect
may I have been goofing? may you have been goofing? may he have been goofing? may we have been goofing? may you have been goofing? may they have been goofing?
Interro-negative form
Simple form
may I not goof? may you not goof? may he not goof? may we not goof? may you not goof? may they not goof?
V-ing form
may I not be goofing? may you not be goofing? may he not be goofing? may we not be goofing? may you not be goofing? may they not be goofing?
Perfect
may I not have goofed? may you not have goofed? may he not have goofed? may we not have goofed? may you not have goofed? may they not have goofed?
V-ing perfect
may I not have been goofing? may you not have been goofing? may he not have been goofing? may we not have been goofing? may you not have been goofing? may they not have been goofing?