The Conjugator
English verb conjugation
MAY HAPPEN

Regular verb: happen - happened - happened

Affirmation

Simple form

V-ing form

-
-
it may happen
-
-
-		-
-
it may be happening
-
-
-

Perfect

V-ing perfect

-
-
it may have happened
-
-
-		-
-
it may have been happening
-
-
-

Negation

Simple form

V-ing form

-
-
it mayn't happen
-
-
-		-
-
it mayn't be happening
-
-
-

Perfect

V-ing perfect

-
-
it mayn't have happened
-
-
-		-
-
it mayn't have been happening
-
-
-

Interrogative form

Simple form

V-ing form

-
-
may it happen?
-
-
-		-
-
may it be happening?
-
-
-

Perfect

V-ing perfect

-
-
may it have happened?
-
-
-		-
-
may it have been happening?
-
-
-

Interro-negative form

Simple form

V-ing form

-
-
mayn't it happen?
-
-
-		-
-
mayn't it be happening?
-
-
-

Perfect

V-ing perfect

-
-
mayn't it have happened?
-
-
-		-
-
mayn't it have been happening?
-
-
-