shall biff
Regular verb: biff - biffed- biffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall biff
you shall biff
he shall biff
we shall biff
you shall biff
they shall biff 	I shall be biffing
you shall be biffing
he shall be biffing
we shall be biffing
you shall be biffing
they shall be biffing	I shall have biffed
you shall have biffed
he shall have biffed
we shall have biffed
you shall have biffed
they shall have biffed	I shall have been biffing
you shall have been biffing
he shall have been biffing
we shall have been biffing
you shall have been biffing
they shall have been biffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not biff
you shall not biff
he shall not biff
we shall not biff
you shall not biff
they shall not biff 	I shall not be biffing
you shall not be biffing
he shall not be biffing
we shall not be biffing
you shall not be biffing
they shall not be biffing	I shall not have biffed
you shall not have biffed
he shall not have biffed
we shall not have biffed
you shall not have biffed
they shall not have biffed	I shall not have been biffing
you shall not have been biffing
he shall not have been biffing
we shall not have been biffing
you shall not have been biffing
they shall not have been biffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I biff?
shall you biff?
shall he biff?
shall we biff?
shall you biff?
shall they biff? 	shall I be biffing?
shall you be biffing?
shall he be biffing?
shall we be biffing?
shall you be biffing?
shall they be biffing? 	shall I have biffed?
shall you have biffed?
shall he have biffed?
shall we have biffed?
shall you have biffed?
shall they have biffed? 	shall I have been biffing?
shall you have been biffing?
shall he have been biffing?
shall we have been biffing?
shall you have been biffing?
shall they have been biffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not biff?
shall you not biff?
shall he not biff?
shall we not biff?
shall you not biff?
shall they not biff? 	shall I not be biffing?
shall you not be biffing?
shall he not be biffing?
shall we not be biffing?
shall you not be biffing?
shall they not be biffing? 	shall I not have biffed?
shall you not have biffed?
shall he not have biffed?
shall we not have biffed?
shall you not have biffed?
shall they not have biffed? 	shall I not have been biffing?
shall you not have been biffing?
shall he not have been biffing?
shall we not have been biffing?
shall you not have been biffing?
shall they not have been biffing?