should derail
Verbe régulier : derail - derailed- derailed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should derail
you should derail
he should derail
we should derail
you should derail
they should derail 	I should be derailing
you should be derailing
he should be derailing
we should be derailing
you should be derailing
they should be derailing	I should have derailed
you should have derailed
he should have derailed
we should have derailed
you should have derailed
they should have derailed	I should have been derailing
you should have been derailing
he should have been derailing
we should have been derailing
you should have been derailing
they should have been derailing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should not derail
you should not derail
he should not derail
we should not derail
you should not derail
they should not derail 	I should not be derailing
you should not be derailing
he should not be derailing
we should not be derailing
you should not be derailing
they should not be derailing	I should not have derailed
you should not have derailed
he should not have derailed
we should not have derailed
you should not have derailed
they should not have derailed	I should not have been derailing
you should not have been derailing
he should not have been derailing
we should not have been derailing
you should not have been derailing
they should not have been derailing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I derail?
should you derail?
should he derail?
should we derail?
should you derail?
should they derail? 	should I be derailing?
should you be derailing?
should he be derailing?
should we be derailing?
should you be derailing?
should they be derailing? 	should I have derailed?
should you have derailed?
should he have derailed?
should we have derailed?
should you have derailed?
should they have derailed? 	should I have been derailing?
should you have been derailing?
should he have been derailing?
should we have been derailing?
should you have been derailing?
should they have been derailing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I not derail?
should you not derail?
should he not derail?
should we not derail?
should you not derail?
should they not derail? 	should I not be derailing?
should you not be derailing?
should he not be derailing?
should we not be derailing?
should you not be derailing?
should they not be derailing? 	should I not have derailed?
should you not have derailed?
should he not have derailed?
should we not have derailed?
should you not have derailed?
should they not have derailed? 	should I not have been derailing?
should you not have been derailing?
should he not have been derailing?
should we not have been derailing?
should you not have been derailing?
should they not have been derailing?