I'll be sifting you'll be sifting he'll be sifting we'll be sifting you'll be sifting they'll be sifting
Perfect
I'll have sifted you'll have sifted he'll have sifted we'll have sifted you'll have sifted they'll have sifted
V-ing perfect
I'll have been sifting you'll have been sifting he'll have been sifting we'll have been sifting you'll have been sifting they'll have been sifting
Negation
Simple form
I won't sift you won't sift he won't sift we won't sift you won't sift they won't sift
V-ing form
I won't be sifting you won't be sifting he won't be sifting we won't be sifting you won't be sifting they won't be sifting
Perfect
I won't have sifted you won't have sifted he won't have sifted we won't have sifted you won't have sifted they won't have sifted
V-ing perfect
I won't have been sifting you won't have been sifting he won't have been sifting we won't have been sifting you won't have been sifting they won't have been sifting
Interrogative form
Simple form
will I sift? will you sift? will he sift? will we sift? will you sift? will they sift?
V-ing form
will I be sifting? will you be sifting? will he be sifting? will we be sifting? will you be sifting? will they be sifting?
Perfect
will I have sifted? will you have sifted? will he have sifted? will we have sifted? will you have sifted? will they have sifted?
V-ing perfect
will I have been sifting? will you have been sifting? will he have been sifting? will we have been sifting? will you have been sifting? will they have been sifting?
Interro-negative form
Simple form
won't I sift? won't you sift? won't he sift? won't we sift? won't you sift? won't they sift?
V-ing form
won't I be sifting? won't you be sifting? won't he be sifting? won't we be sifting? won't you be sifting? won't they be sifting?
Perfect
won't I have sifted? won't you have sifted? won't he have sifted? won't we have sifted? won't you have sifted? won't they have sifted?
V-ing perfect
won't I have been sifting? won't you have been sifting? won't he have been sifting? won't we have been sifting? won't you have been sifting? won't they have been sifting?