I may sift you may sift he may sift we may sift you may sift they may sift
Forma com V-ing
I may be sifting you may be sifting he may be sifting we may be sifting you may be sifting they may be sifting
Perfeito
I may have sifted you may have sifted he may have sifted we may have sifted you may have sifted they may have sifted
Perfeito com V-ing
I may have been sifting you may have been sifting he may have been sifting we may have been sifting you may have been sifting they may have been sifting
Negação
Forma simple
I mayn't sift you mayn't sift he mayn't sift we mayn't sift you mayn't sift they mayn't sift
Forma com V-ing
I mayn't be sifting you mayn't be sifting he mayn't be sifting we mayn't be sifting you mayn't be sifting they mayn't be sifting
Perfeito
I mayn't have sifted you mayn't have sifted he mayn't have sifted we mayn't have sifted you mayn't have sifted they mayn't have sifted
Perfeito com V-ing
I mayn't have been sifting you mayn't have been sifting he mayn't have been sifting we mayn't have been sifting you mayn't have been sifting they mayn't have been sifting
Forma interrogativa
Forma simple
may I sift? may you sift? may he sift? may we sift? may you sift? may they sift?
Forma com V-ing
may I be sifting? may you be sifting? may he be sifting? may we be sifting? may you be sifting? may they be sifting?
Perfeito
may I have sifted? may you have sifted? may he have sifted? may we have sifted? may you have sifted? may they have sifted?
Perfeito com V-ing
may I have been sifting? may you have been sifting? may he have been sifting? may we have been sifting? may you have been sifting? may they have been sifting?
Forma interro-Negação
Forma simple
mayn't I sift? mayn't you sift? mayn't he sift? mayn't we sift? mayn't you sift? mayn't they sift?
Forma com V-ing
mayn't I be sifting? mayn't you be sifting? mayn't he be sifting? mayn't we be sifting? mayn't you be sifting? mayn't they be sifting?
Perfeito
mayn't I have sifted? mayn't you have sifted? mayn't he have sifted? mayn't we have sifted? mayn't you have sifted? mayn't they have sifted?
Perfeito com V-ing
mayn't I have been sifting? mayn't you have been sifting? mayn't he have been sifting? mayn't we have been sifting? mayn't you have been sifting? mayn't they have been sifting?