may befall
Irregular verb: befall - befell- befallen

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may befall
you may befall
she may befall
we may befall
you may befall
they may befall 	I may be befalling
you may be befalling
she may be befalling
we may be befalling
you may be befalling
they may be befalling	I may have befallen
you may have befallen
she may have befallen
we may have befallen
you may have befallen
they may have befallen	I may have been befalling
you may have been befalling
she may have been befalling
we may have been befalling
you may have been befalling
they may have been befalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't befall
you mayn't befall
she mayn't befall
we mayn't befall
you mayn't befall
they mayn't befall 	I mayn't be befalling
you mayn't be befalling
she mayn't be befalling
we mayn't be befalling
you mayn't be befalling
they mayn't be befalling	I mayn't have befallen
you mayn't have befallen
she mayn't have befallen
we mayn't have befallen
you mayn't have befallen
they mayn't have befallen	I mayn't have been befalling
you mayn't have been befalling
she mayn't have been befalling
we mayn't have been befalling
you mayn't have been befalling
they mayn't have been befalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I befall?
may you befall?
may she befall?
may we befall?
may you befall?
may they befall? 	may I be befalling?
may you be befalling?
may she be befalling?
may we be befalling?
may you be befalling?
may they be befalling? 	may I have befallen?
may you have befallen?
may she have befallen?
may we have befallen?
may you have befallen?
may they have befallen? 	may I have been befalling?
may you have been befalling?
may she have been befalling?
may we have been befalling?
may you have been befalling?
may they have been befalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I befall?
mayn't you befall?
mayn't she befall?
mayn't we befall?
mayn't you befall?
mayn't they befall? 	mayn't I be befalling?
mayn't you be befalling?
mayn't she be befalling?
mayn't we be befalling?
mayn't you be befalling?
mayn't they be befalling? 	mayn't I have befallen?
mayn't you have befallen?
mayn't she have befallen?
mayn't we have befallen?
mayn't you have befallen?
mayn't they have befallen? 	mayn't I have been befalling?
mayn't you have been befalling?
mayn't she have been befalling?
mayn't we have been befalling?
mayn't you have been befalling?
mayn't they have been befalling?