should befall
Irregular verb: befall - befell- befallen

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd befall
you'd befall
she'd befall
we'd befall
you'd befall
they'd befall 	I'd be befalling
you'd be befalling
she'd be befalling
we'd be befalling
you'd be befalling
they'd be befalling	I should've befallen
you should've befallen
she should've befallen
we should've befallen
you should've befallen
they should've befallen	I should've been befalling
you should've been befalling
she should've been befalling
we should've been befalling
you should've been befalling
they should've been befalling	

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

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

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