I ought to sift you ought to sift she ought to sift we ought to sift you ought to sift they ought to sift
Forma con V-ing
I ought to be sifting you ought to be sifting she ought to be sifting we ought to be sifting you ought to be sifting they ought to be sifting
Perfecto
I ought to have sifted you ought to have sifted she ought to have sifted we ought to have sifted you ought to have sifted they ought to have sifted
Perfecto con V-ing
I ought to have been sifting you ought to have been sifting she ought to have been sifting we ought to have been sifting you ought to have been sifting they ought to have been sifting
Negación
Forma simple
I oughtn't to sift you oughtn't to sift she oughtn't to sift we oughtn't to sift you oughtn't to sift they oughtn't to sift
Forma con V-ing
I oughtn't to be sifting you oughtn't to be sifting she oughtn't to be sifting we oughtn't to be sifting you oughtn't to be sifting they oughtn't to be sifting
Perfecto
I oughtn't to have sifted you oughtn't to have sifted she oughtn't to have sifted we oughtn't to have sifted you oughtn't to have sifted they oughtn't to have sifted
Perfecto con V-ing
I oughtn't to have been sifting you oughtn't to have been sifting she oughtn't to have been sifting we oughtn't to have been sifting you oughtn't to have been sifting they oughtn't to have been sifting
Forma interrogativa
Forma simple
ought to I sift? ought to you sift? ought to she sift? ought to we sift? ought to you sift? ought to they sift?
Forma con V-ing
ought to I be sifting? ought to you be sifting? ought to she be sifting? ought to we be sifting? ought to you be sifting? ought to they be sifting?
Perfecto
ought to I have sifted? ought to you have sifted? ought to she have sifted? ought to we have sifted? ought to you have sifted? ought to they have sifted?
Perfecto con V-ing
ought to I have been sifting? ought to you have been sifting? ought to she have been sifting? ought to we have been sifting? ought to you have been sifting? ought to they have been sifting?
Forma interro-negativa
Forma simple
oughtn't I to sift? oughtn't you to sift? oughtn't she to sift? oughtn't we to sift? oughtn't you to sift? oughtn't they to sift?
Forma con V-ing
oughtn't I to be sifting? oughtn't you to be sifting? oughtn't she to be sifting? oughtn't we to be sifting? oughtn't you to be sifting? oughtn't they to be sifting?
Perfecto
oughtn't I to have sifted? oughtn't you to have sifted? oughtn't she to have sifted? oughtn't we to have sifted? oughtn't you to have sifted? oughtn't they to have sifted?
Perfecto con V-ing
oughtn't I to have been sifting? oughtn't you to have been sifting? oughtn't she to have been sifting? oughtn't we to have been sifting? oughtn't you to have been sifting? oughtn't they to have been sifting?