ought to perdure
Verbe régulier : perdure - perdured- perdured

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to perdure
you ought to perdure
he ought to perdure
we ought to perdure
you ought to perdure
they ought to perdure 	I ought to be perduring
you ought to be perduring
he ought to be perduring
we ought to be perduring
you ought to be perduring
they ought to be perduring	I ought to have perdured
you ought to have perdured
he ought to have perdured
we ought to have perdured
you ought to have perdured
they ought to have perdured	I ought to have been perduring
you ought to have been perduring
he ought to have been perduring
we ought to have been perduring
you ought to have been perduring
they ought to have been perduring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought not to perdure
you ought not to perdure
he ought not to perdure
we ought not to perdure
you ought not to perdure
they ought not to perdure 	I ought not to perduring
you ought not to perduring
he ought not to perduring
we ought not to perduring
you ought not to perduring
they ought not to perduring	I ought not to have perdured
you ought not to have perdured
he ought not to have perdured
we ought not to have perdured
you ought not to have perdured
they ought not to have perdured	I ought not to have been perduring
you ought not to have been perduring
he ought not to have been perduring
we ought not to have been perduring
you ought not to have been perduring
they ought not to have been perduring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I perdure?
ought to you perdure?
ought to he perdure?
ought to we perdure?
ought to you perdure?
ought to they perdure? 	ought to I be perduring?
ought to you be perduring?
ought to he be perduring?
ought to we be perduring?
ought to you be perduring?
ought to they be perduring? 	ought to I have perdured?
ought to you have perdured?
ought to he have perdured?
ought to we have perdured?
ought to you have perdured?
ought to they have perdured? 	ought to I have been perduring?
ought to you have been perduring?
ought to he have been perduring?
ought to we have been perduring?
ought to you have been perduring?
ought to they have been perduring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought I not to perdure?
ought you not to perdure?
ought he not to perdure?
ought we not to perdure?
ought you not to perdure?
ought they not to perdure? 	ought I not to be perduring?
ought you not to be perduring?
ought he not to be perduring?
ought we not to be perduring?
ought you not to be perduring?
ought they not to be perduring? 	ought I not to have perdured?
ought you not to have perdured?
ought he not to have perdured?
ought we not to have perdured?
ought you not to have perdured?
ought they not to have perdured? 	ought I not to have been perduring?
ought you not to have been perduring?
ought he not to have been perduring?
ought we not to have been perduring?
ought you not to have been perduring?
ought they not to have been perduring?