shall flack
Regular verb: flack - flacked- flacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall flack
you shall flack
he shall flack
we shall flack
you shall flack
they shall flack 	I shall be flacking
you shall be flacking
he shall be flacking
we shall be flacking
you shall be flacking
they shall be flacking	I shall have flacked
you shall have flacked
he shall have flacked
we shall have flacked
you shall have flacked
they shall have flacked	I shall have been flacking
you shall have been flacking
he shall have been flacking
we shall have been flacking
you shall have been flacking
they shall have been flacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not flack
you shall not flack
he shall not flack
we shall not flack
you shall not flack
they shall not flack 	I shall not be flacking
you shall not be flacking
he shall not be flacking
we shall not be flacking
you shall not be flacking
they shall not be flacking	I shall not have flacked
you shall not have flacked
he shall not have flacked
we shall not have flacked
you shall not have flacked
they shall not have flacked	I shall not have been flacking
you shall not have been flacking
he shall not have been flacking
we shall not have been flacking
you shall not have been flacking
they shall not have been flacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I flack?
shall you flack?
shall he flack?
shall we flack?
shall you flack?
shall they flack? 	shall I be flacking?
shall you be flacking?
shall he be flacking?
shall we be flacking?
shall you be flacking?
shall they be flacking? 	shall I have flacked?
shall you have flacked?
shall he have flacked?
shall we have flacked?
shall you have flacked?
shall they have flacked? 	shall I have been flacking?
shall you have been flacking?
shall he have been flacking?
shall we have been flacking?
shall you have been flacking?
shall they have been flacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not flack?
shall you not flack?
shall he not flack?
shall we not flack?
shall you not flack?
shall they not flack? 	shall I not be flacking?
shall you not be flacking?
shall he not be flacking?
shall we not be flacking?
shall you not be flacking?
shall they not be flacking? 	shall I not have flacked?
shall you not have flacked?
shall he not have flacked?
shall we not have flacked?
shall you not have flacked?
shall they not have flacked? 	shall I not have been flacking?
shall you not have been flacking?
shall he not have been flacking?
shall we not have been flacking?
shall you not have been flacking?
shall they not have been flacking?