can befall
Irregular verb: befall - befell- befallen

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot befall
you cannot befall
he cannot befall
we cannot befall
you cannot befall
they cannot befall 	I cannot be befalling
you cannot be befalling
he cannot be befalling
we cannot be befalling
you cannot be befalling
they cannot be befalling	I cannot have befallen
you cannot have befallen
he cannot have befallen
we cannot have befallen
you cannot have befallen
they cannot have befallen	I cannot have been befalling
you cannot have been befalling
he cannot have been befalling
we cannot have been befalling
you cannot have been befalling
they cannot have been befalling	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not befall?
can you not befall?
can he not befall?
can we not befall?
can you not befall?
can they not befall? 	can I not be befalling?
can you not be befalling?
can he not be befalling?
can we not be befalling?
can you not be befalling?
can they not be befalling? 	can I not have befallen?
can you not have befallen?
can he not have befallen?
can we not have befallen?
can you not have befallen?
can they not have befallen? 	can I not have been befalling?
can you not have been befalling?
can he not have been befalling?
can we not have been befalling?
can you not have been befalling?
can they not have been befalling?