Regular verb: sift - sifted - sifted
Simple form | V-ing form |
I may sift you may sift he may sift we may sift you may sift they may sift | I may be sifting you may be sifting he may be sifting we may be sifting you may be sifting they may be sifting |
Perfect | V-ing perfect |
I may have sifted you may have sifted he may have sifted we may have sifted you may have sifted they may have sifted | 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 |
Simple form | V-ing form |
I mayn't sift you mayn't sift he mayn't sift we mayn't sift you mayn't sift they mayn't sift | 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 |
Perfect | V-ing perfect |
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 | 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 |
Simple form | V-ing form |
may I sift? may you sift? may he sift? may we sift? may you sift? may they sift? | may I be sifting? may you be sifting? may he be sifting? may we be sifting? may you be sifting? may they be sifting? |
Perfect | V-ing perfect |
may I have sifted? may you have sifted? may he have sifted? may we have sifted? may you have sifted? may they have sifted? | 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? |
Simple form | V-ing form |
mayn't I sift? mayn't you sift? mayn't he sift? mayn't we sift? mayn't you sift? mayn't they sift? | 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? |
Perfect | V-ing perfect |
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? | 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? |