ought to forewarn
Verbo regular: forewarn - forewarned- forewarned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to forewarn
you ought to forewarn
he 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
he 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
he 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
he ought to have been forewarning
we ought to have been forewarning
you ought to have been forewarning
they ought to have been forewarning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to forewarn
you oughtn't to forewarn
he 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
he 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
he 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
he 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	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I forewarn?
ought to you forewarn?
ought to he 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 he 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 he 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 he have been forewarning?
ought to we have been forewarning?
ought to you have been forewarning?
ought to they have been forewarning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to forewarn?
oughtn't you to forewarn?
oughtn't he 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 he 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 he 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 he 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?