may precheck
Verbe régulier : precheck - prechecked- prechecked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may precheck
you may precheck
she may precheck
we may precheck
you may precheck
they may precheck 	I may be prechecking
you may be prechecking
she may be prechecking
we may be prechecking
you may be prechecking
they may be prechecking	I may have prechecked
you may have prechecked
she may have prechecked
we may have prechecked
you may have prechecked
they may have prechecked	I may have been prechecking
you may have been prechecking
she may have been prechecking
we may have been prechecking
you may have been prechecking
they may have been prechecking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may not precheck
you may not precheck
she may not precheck
we may not precheck
you may not precheck
they may not precheck 	I may not be prechecking
you may not be prechecking
she may not be prechecking
we may not be prechecking
you may not be prechecking
they may not be prechecking	I may not have prechecked
you may not have prechecked
she may not have prechecked
we may not have prechecked
you may not have prechecked
they may not have prechecked	I may not have been prechecking
you may not have been prechecking
she may not have been prechecking
we may not have been prechecking
you may not have been prechecking
they may not have been prechecking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I precheck?
may you precheck?
may she precheck?
may we precheck?
may you precheck?
may they precheck? 	may I be prechecking?
may you be prechecking?
may she be prechecking?
may we be prechecking?
may you be prechecking?
may they be prechecking? 	may I have prechecked?
may you have prechecked?
may she have prechecked?
may we have prechecked?
may you have prechecked?
may they have prechecked? 	may I have been prechecking?
may you have been prechecking?
may she have been prechecking?
may we have been prechecking?
may you have been prechecking?
may they have been prechecking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I not precheck?
may you not precheck?
may she not precheck?
may we not precheck?
may you not precheck?
may they not precheck? 	may I not be prechecking?
may you not be prechecking?
may she not be prechecking?
may we not be prechecking?
may you not be prechecking?
may they not be prechecking? 	may I not have prechecked?
may you not have prechecked?
may she not have prechecked?
may we not have prechecked?
may you not have prechecked?
may they not have prechecked? 	may I not have been prechecking?
may you not have been prechecking?
may she not have been prechecking?
may we not have been prechecking?
may you not have been prechecking?
may they not have been prechecking?