ought to derive
Verbo regular: derive - derived- derived

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to derive
you ought to derive
he ought to derive
we ought to derive
you ought to derive
they ought to derive 	I ought to be deriving
you ought to be deriving
he ought to be deriving
we ought to be deriving
you ought to be deriving
they ought to be deriving	I ought to have derived
you ought to have derived
he ought to have derived
we ought to have derived
you ought to have derived
they ought to have derived	I ought to have been deriving
you ought to have been deriving
he ought to have been deriving
we ought to have been deriving
you ought to have been deriving
they ought to have been deriving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to derive
you oughtn't to derive
he oughtn't to derive
we oughtn't to derive
you oughtn't to derive
they oughtn't to derive 	I oughtn't to be deriving
you oughtn't to be deriving
he oughtn't to be deriving
we oughtn't to be deriving
you oughtn't to be deriving
they oughtn't to be deriving	I oughtn't to have derived
you oughtn't to have derived
he oughtn't to have derived
we oughtn't to have derived
you oughtn't to have derived
they oughtn't to have derived	I oughtn't to have been deriving
you oughtn't to have been deriving
he oughtn't to have been deriving
we oughtn't to have been deriving
you oughtn't to have been deriving
they oughtn't to have been deriving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I derive?
ought to you derive?
ought to he derive?
ought to we derive?
ought to you derive?
ought to they derive? 	ought to I be deriving?
ought to you be deriving?
ought to he be deriving?
ought to we be deriving?
ought to you be deriving?
ought to they be deriving? 	ought to I have derived?
ought to you have derived?
ought to he have derived?
ought to we have derived?
ought to you have derived?
ought to they have derived? 	ought to I have been deriving?
ought to you have been deriving?
ought to he have been deriving?
ought to we have been deriving?
ought to you have been deriving?
ought to they have been deriving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to derive?
oughtn't you to derive?
oughtn't he to derive?
oughtn't we to derive?
oughtn't you to derive?
oughtn't they to derive? 	oughtn't I to be deriving?
oughtn't you to be deriving?
oughtn't he to be deriving?
oughtn't we to be deriving?
oughtn't you to be deriving?
oughtn't they to be deriving? 	oughtn't I to have derived?
oughtn't you to have derived?
oughtn't he to have derived?
oughtn't we to have derived?
oughtn't you to have derived?
oughtn't they to have derived? 	oughtn't I to have been deriving?
oughtn't you to have been deriving?
oughtn't he to have been deriving?
oughtn't we to have been deriving?
oughtn't you to have been deriving?
oughtn't they to have been deriving?