ought to derail
Regular verb: derail - derailed- derailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to derail
you ought to derail
he ought to derail
we ought to derail
you ought to derail
they ought to derail 	I ought to be derailing
you ought to be derailing
he ought to be derailing
we ought to be derailing
you ought to be derailing
they ought to be derailing	I ought to have derailed
you ought to have derailed
he ought to have derailed
we ought to have derailed
you ought to have derailed
they ought to have derailed	I ought to have been derailing
you ought to have been derailing
he ought to have been derailing
we ought to have been derailing
you ought to have been derailing
they ought to have been derailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to derail
you ought not to derail
he ought not to derail
we ought not to derail
you ought not to derail
they ought not to derail 	I ought not to derailing
you ought not to derailing
he ought not to derailing
we ought not to derailing
you ought not to derailing
they ought not to derailing	I ought not to have derailed
you ought not to have derailed
he ought not to have derailed
we ought not to have derailed
you ought not to have derailed
they ought not to have derailed	I ought not to have been derailing
you ought not to have been derailing
he ought not to have been derailing
we ought not to have been derailing
you ought not to have been derailing
they ought not to have been derailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I derail?
ought to you derail?
ought to he derail?
ought to we derail?
ought to you derail?
ought to they derail? 	ought to I be derailing?
ought to you be derailing?
ought to he be derailing?
ought to we be derailing?
ought to you be derailing?
ought to they be derailing? 	ought to I have derailed?
ought to you have derailed?
ought to he have derailed?
ought to we have derailed?
ought to you have derailed?
ought to they have derailed? 	ought to I have been derailing?
ought to you have been derailing?
ought to he have been derailing?
ought to we have been derailing?
ought to you have been derailing?
ought to they have been derailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to derail?
ought you not to derail?
ought he not to derail?
ought we not to derail?
ought you not to derail?
ought they not to derail? 	ought I not to be derailing?
ought you not to be derailing?
ought he not to be derailing?
ought we not to be derailing?
ought you not to be derailing?
ought they not to be derailing? 	ought I not to have derailed?
ought you not to have derailed?
ought he not to have derailed?
ought we not to have derailed?
ought you not to have derailed?
ought they not to have derailed? 	ought I not to have been derailing?
ought you not to have been derailing?
ought he not to have been derailing?
ought we not to have been derailing?
ought you not to have been derailing?
ought they not to have been derailing?