shall precheck
Regular verb: precheck - prechecked- prechecked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall precheck
you shall precheck
he shall precheck
we shall precheck
you shall precheck
they shall precheck 	I shall be prechecking
you shall be prechecking
he shall be prechecking
we shall be prechecking
you shall be prechecking
they shall be prechecking	I shall have prechecked
you shall have prechecked
he shall have prechecked
we shall have prechecked
you shall have prechecked
they shall have prechecked	I shall have been prechecking
you shall have been prechecking
he shall have been prechecking
we shall have been prechecking
you shall have been prechecking
they shall have been prechecking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not precheck
you shall not precheck
he shall not precheck
we shall not precheck
you shall not precheck
they shall not precheck 	I shall not be prechecking
you shall not be prechecking
he shall not be prechecking
we shall not be prechecking
you shall not be prechecking
they shall not be prechecking	I shall not have prechecked
you shall not have prechecked
he shall not have prechecked
we shall not have prechecked
you shall not have prechecked
they shall not have prechecked	I shall not have been prechecking
you shall not have been prechecking
he shall not have been prechecking
we shall not have been prechecking
you shall not have been prechecking
they shall not have been prechecking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I precheck?
shall you precheck?
shall he precheck?
shall we precheck?
shall you precheck?
shall they precheck? 	shall I be prechecking?
shall you be prechecking?
shall he be prechecking?
shall we be prechecking?
shall you be prechecking?
shall they be prechecking? 	shall I have prechecked?
shall you have prechecked?
shall he have prechecked?
shall we have prechecked?
shall you have prechecked?
shall they have prechecked? 	shall I have been prechecking?
shall you have been prechecking?
shall he have been prechecking?
shall we have been prechecking?
shall you have been prechecking?
shall they have been prechecking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not precheck?
shall you not precheck?
shall he not precheck?
shall we not precheck?
shall you not precheck?
shall they not precheck? 	shall I not be prechecking?
shall you not be prechecking?
shall he not be prechecking?
shall we not be prechecking?
shall you not be prechecking?
shall they not be prechecking? 	shall I not have prechecked?
shall you not have prechecked?
shall he not have prechecked?
shall we not have prechecked?
shall you not have prechecked?
shall they not have prechecked? 	shall I not have been prechecking?
shall you not have been prechecking?
shall he not have been prechecking?
shall we not have been prechecking?
shall you not have been prechecking?
shall they not have been prechecking?