ought to forewarn
Verbe régulier : forewarn - forewarned- forewarned
Traduction française : prévenir - avertir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to forewarn
you ought to forewarn
she ought to forewarn
we ought to forewarn
you ought to forewarn
they ought to forewarn 	I ought to be forewarning
you ought to be forewarning
she ought to be forewarning
we ought to be forewarning
you ought to be forewarning
they ought to be forewarning	I ought to have forewarned
you ought to have forewarned
she ought to have forewarned
we ought to have forewarned
you ought to have forewarned
they ought to have forewarned	I ought to have been forewarning
you ought to have been forewarning
she ought to have been forewarning
we ought to have been forewarning
you ought to have been forewarning
they ought to have been forewarning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I oughtn't to forewarn
you oughtn't to forewarn
she oughtn't to forewarn
we oughtn't to forewarn
you oughtn't to forewarn
they oughtn't to forewarn 	I oughtn't to be forewarning
you oughtn't to be forewarning
she oughtn't to be forewarning
we oughtn't to be forewarning
you oughtn't to be forewarning
they oughtn't to be forewarning	I oughtn't to have forewarned
you oughtn't to have forewarned
she oughtn't to have forewarned
we oughtn't to have forewarned
you oughtn't to have forewarned
they oughtn't to have forewarned	I oughtn't to have been forewarning
you oughtn't to have been forewarning
she oughtn't to have been forewarning
we oughtn't to have been forewarning
you oughtn't to have been forewarning
they oughtn't to have been forewarning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I forewarn?
ought to you forewarn?
ought to she forewarn?
ought to we forewarn?
ought to you forewarn?
ought to they forewarn? 	ought to I be forewarning?
ought to you be forewarning?
ought to she be forewarning?
ought to we be forewarning?
ought to you be forewarning?
ought to they be forewarning? 	ought to I have forewarned?
ought to you have forewarned?
ought to she have forewarned?
ought to we have forewarned?
ought to you have forewarned?
ought to they have forewarned? 	ought to I have been forewarning?
ought to you have been forewarning?
ought to she have been forewarning?
ought to we have been forewarning?
ought to you have been forewarning?
ought to they have been forewarning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
oughtn't I to forewarn?
oughtn't you to forewarn?
oughtn't she to forewarn?
oughtn't we to forewarn?
oughtn't you to forewarn?
oughtn't they to forewarn? 	oughtn't I to be forewarning?
oughtn't you to be forewarning?
oughtn't she to be forewarning?
oughtn't we to be forewarning?
oughtn't you to be forewarning?
oughtn't they to be forewarning? 	oughtn't I to have forewarned?
oughtn't you to have forewarned?
oughtn't she to have forewarned?
oughtn't we to have forewarned?
oughtn't you to have forewarned?
oughtn't they to have forewarned? 	oughtn't I to have been forewarning?
oughtn't you to have been forewarning?
oughtn't she to have been forewarning?
oughtn't we to have been forewarning?
oughtn't you to have been forewarning?
oughtn't they to have been forewarning?