I may scheme you may scheme he may scheme we may scheme you may scheme they may scheme
V-ing form
I may be scheming you may be scheming he may be scheming we may be scheming you may be scheming they may be scheming
Perfect
I may have schemed you may have schemed he may have schemed we may have schemed you may have schemed they may have schemed
V-ing perfect
I may have been scheming you may have been scheming he may have been scheming we may have been scheming you may have been scheming they may have been scheming
Negation
Simple form
I mayn't scheme you mayn't scheme he mayn't scheme we mayn't scheme you mayn't scheme they mayn't scheme
V-ing form
I mayn't be scheming you mayn't be scheming he mayn't be scheming we mayn't be scheming you mayn't be scheming they mayn't be scheming
Perfect
I mayn't have schemed you mayn't have schemed he mayn't have schemed we mayn't have schemed you mayn't have schemed they mayn't have schemed
V-ing perfect
I mayn't have been scheming you mayn't have been scheming he mayn't have been scheming we mayn't have been scheming you mayn't have been scheming they mayn't have been scheming
Interrogative form
Simple form
may I scheme? may you scheme? may he scheme? may we scheme? may you scheme? may they scheme?
V-ing form
may I be scheming? may you be scheming? may he be scheming? may we be scheming? may you be scheming? may they be scheming?
Perfect
may I have schemed? may you have schemed? may he have schemed? may we have schemed? may you have schemed? may they have schemed?
V-ing perfect
may I have been scheming? may you have been scheming? may he have been scheming? may we have been scheming? may you have been scheming? may they have been scheming?
Interro-negative form
Simple form
mayn't I scheme? mayn't you scheme? mayn't he scheme? mayn't we scheme? mayn't you scheme? mayn't they scheme?
V-ing form
mayn't I be scheming? mayn't you be scheming? mayn't he be scheming? mayn't we be scheming? mayn't you be scheming? mayn't they be scheming?
Perfect
mayn't I have schemed? mayn't you have schemed? mayn't he have schemed? mayn't we have schemed? mayn't you have schemed? mayn't they have schemed?
V-ing perfect
mayn't I have been scheming? mayn't you have been scheming? mayn't he have been scheming? mayn't we have been scheming? mayn't you have been scheming? mayn't they have been scheming?