ought to prebill
Verbe régulier : prebill - prebilled- prebilled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to prebill
you ought to prebill
he ought to prebill
we ought to prebill
you ought to prebill
they ought to prebill 	I ought to be prebilling
you ought to be prebilling
he ought to be prebilling
we ought to be prebilling
you ought to be prebilling
they ought to be prebilling	I ought to have prebilled
you ought to have prebilled
he ought to have prebilled
we ought to have prebilled
you ought to have prebilled
they ought to have prebilled	I ought to have been prebilling
you ought to have been prebilling
he ought to have been prebilling
we ought to have been prebilling
you ought to have been prebilling
they ought to have been prebilling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought not to prebill
you ought not to prebill
he ought not to prebill
we ought not to prebill
you ought not to prebill
they ought not to prebill 	I ought not to prebilling
you ought not to prebilling
he ought not to prebilling
we ought not to prebilling
you ought not to prebilling
they ought not to prebilling	I ought not to have prebilled
you ought not to have prebilled
he ought not to have prebilled
we ought not to have prebilled
you ought not to have prebilled
they ought not to have prebilled	I ought not to have been prebilling
you ought not to have been prebilling
he ought not to have been prebilling
we ought not to have been prebilling
you ought not to have been prebilling
they ought not to have been prebilling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I prebill?
ought to you prebill?
ought to he prebill?
ought to we prebill?
ought to you prebill?
ought to they prebill? 	ought to I be prebilling?
ought to you be prebilling?
ought to he be prebilling?
ought to we be prebilling?
ought to you be prebilling?
ought to they be prebilling? 	ought to I have prebilled?
ought to you have prebilled?
ought to he have prebilled?
ought to we have prebilled?
ought to you have prebilled?
ought to they have prebilled? 	ought to I have been prebilling?
ought to you have been prebilling?
ought to he have been prebilling?
ought to we have been prebilling?
ought to you have been prebilling?
ought to they have been prebilling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought I not to prebill?
ought you not to prebill?
ought he not to prebill?
ought we not to prebill?
ought you not to prebill?
ought they not to prebill? 	ought I not to be prebilling?
ought you not to be prebilling?
ought he not to be prebilling?
ought we not to be prebilling?
ought you not to be prebilling?
ought they not to be prebilling? 	ought I not to have prebilled?
ought you not to have prebilled?
ought he not to have prebilled?
ought we not to have prebilled?
ought you not to have prebilled?
ought they not to have prebilled? 	ought I not to have been prebilling?
ought you not to have been prebilling?
ought he not to have been prebilling?
ought we not to have been prebilling?
ought you not to have been prebilling?
ought they not to have been prebilling?