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 ought not to sift you ought not to sift she ought not to sift we ought not to sift you ought not to sift they ought not to sift
Forma con V-ing
I ought not to sifting you ought not to sifting she ought not to sifting we ought not to sifting you ought not to sifting they ought not to sifting
Perfecto
I ought not to have sifted you ought not to have sifted she ought not to have sifted we ought not to have sifted you ought not to have sifted they ought not to have sifted
Perfecto con V-ing
I ought not to have been sifting you ought not to have been sifting she ought not to have been sifting we ought not to have been sifting you ought not to have been sifting they ought not 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
ought I not to sift? ought you not to sift? ought she not to sift? ought we not to sift? ought you not to sift? ought they not to sift?
Forma con V-ing
ought I not to be sifting? ought you not to be sifting? ought she not to be sifting? ought we not to be sifting? ought you not to be sifting? ought they not to be sifting?
Perfecto
ought I not to have sifted? ought you not to have sifted? ought she not to have sifted? ought we not to have sifted? ought you not to have sifted? ought they not to have sifted?
Perfecto con V-ing
ought I not to have been sifting? ought you not to have been sifting? ought she not to have been sifting? ought we not to have been sifting? ought you not to have been sifting? ought they not to have been sifting?