English verb conjugation
MAY FIB

Regular verb: fib - fibbed - fibbed

Affirmation

Simple form	V-ing form
I may fib you may fib he may fib we may fib you may fib they may fib	I may be fibbing you may be fibbing he may be fibbing we may be fibbing you may be fibbing they may be fibbing
Perfect	V-ing perfect
I may have fibbed you may have fibbed he may have fibbed we may have fibbed you may have fibbed they may have fibbed	I may have been fibbing you may have been fibbing he may have been fibbing we may have been fibbing you may have been fibbing they may have been fibbing

Negation

Simple form	V-ing form
I mayn't fib you mayn't fib he mayn't fib we mayn't fib you mayn't fib they mayn't fib	I mayn't be fibbing you mayn't be fibbing he mayn't be fibbing we mayn't be fibbing you mayn't be fibbing they mayn't be fibbing
Perfect	V-ing perfect
I mayn't have fibbed you mayn't have fibbed he mayn't have fibbed we mayn't have fibbed you mayn't have fibbed they mayn't have fibbed	I mayn't have been fibbing you mayn't have been fibbing he mayn't have been fibbing we mayn't have been fibbing you mayn't have been fibbing they mayn't have been fibbing

Interrogative form

Simple form	V-ing form
may I fib? may you fib? may he fib? may we fib? may you fib? may they fib?	may I be fibbing? may you be fibbing? may he be fibbing? may we be fibbing? may you be fibbing? may they be fibbing?
Perfect	V-ing perfect
may I have fibbed? may you have fibbed? may he have fibbed? may we have fibbed? may you have fibbed? may they have fibbed?	may I have been fibbing? may you have been fibbing? may he have been fibbing? may we have been fibbing? may you have been fibbing? may they have been fibbing?

Interro-negative form

Simple form	V-ing form
mayn't I fib? mayn't you fib? mayn't he fib? mayn't we fib? mayn't you fib? mayn't they fib?	mayn't I be fibbing? mayn't you be fibbing? mayn't he be fibbing? mayn't we be fibbing? mayn't you be fibbing? mayn't they be fibbing?
Perfect	V-ing perfect
mayn't I have fibbed? mayn't you have fibbed? mayn't he have fibbed? mayn't we have fibbed? mayn't you have fibbed? mayn't they have fibbed?	mayn't I have been fibbing? mayn't you have been fibbing? mayn't he have been fibbing? mayn't we have been fibbing? mayn't you have been fibbing? mayn't they have been fibbing?