ought to subtract
Verbo regular: subtract - subtracted- subtracted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to subtract
you ought to subtract
he ought to subtract
we ought to subtract
you ought to subtract
they ought to subtract 	I ought to be subtracting
you ought to be subtracting
he ought to be subtracting
we ought to be subtracting
you ought to be subtracting
they ought to be subtracting	I ought to have subtracted
you ought to have subtracted
he ought to have subtracted
we ought to have subtracted
you ought to have subtracted
they ought to have subtracted	I ought to have been subtracting
you ought to have been subtracting
he ought to have been subtracting
we ought to have been subtracting
you ought to have been subtracting
they ought to have been subtracting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to subtract
you oughtn't to subtract
he oughtn't to subtract
we oughtn't to subtract
you oughtn't to subtract
they oughtn't to subtract 	I oughtn't to be subtracting
you oughtn't to be subtracting
he oughtn't to be subtracting
we oughtn't to be subtracting
you oughtn't to be subtracting
they oughtn't to be subtracting	I oughtn't to have subtracted
you oughtn't to have subtracted
he oughtn't to have subtracted
we oughtn't to have subtracted
you oughtn't to have subtracted
they oughtn't to have subtracted	I oughtn't to have been subtracting
you oughtn't to have been subtracting
he oughtn't to have been subtracting
we oughtn't to have been subtracting
you oughtn't to have been subtracting
they oughtn't to have been subtracting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I subtract?
ought to you subtract?
ought to he subtract?
ought to we subtract?
ought to you subtract?
ought to they subtract? 	ought to I be subtracting?
ought to you be subtracting?
ought to he be subtracting?
ought to we be subtracting?
ought to you be subtracting?
ought to they be subtracting? 	ought to I have subtracted?
ought to you have subtracted?
ought to he have subtracted?
ought to we have subtracted?
ought to you have subtracted?
ought to they have subtracted? 	ought to I have been subtracting?
ought to you have been subtracting?
ought to he have been subtracting?
ought to we have been subtracting?
ought to you have been subtracting?
ought to they have been subtracting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to subtract?
oughtn't you to subtract?
oughtn't he to subtract?
oughtn't we to subtract?
oughtn't you to subtract?
oughtn't they to subtract? 	oughtn't I to be subtracting?
oughtn't you to be subtracting?
oughtn't he to be subtracting?
oughtn't we to be subtracting?
oughtn't you to be subtracting?
oughtn't they to be subtracting? 	oughtn't I to have subtracted?
oughtn't you to have subtracted?
oughtn't he to have subtracted?
oughtn't we to have subtracted?
oughtn't you to have subtracted?
oughtn't they to have subtracted? 	oughtn't I to have been subtracting?
oughtn't you to have been subtracting?
oughtn't he to have been subtracting?
oughtn't we to have been subtracting?
oughtn't you to have been subtracting?
oughtn't they to have been subtracting?