should precheck
Verbe régulier : precheck - prechecked- prechecked

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

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

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

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