I may cement you may cement he may cement we may cement you may cement they may cement
Forma com V-ing
I may be cementing you may be cementing he may be cementing we may be cementing you may be cementing they may be cementing
Perfeito
I may have cemented you may have cemented he may have cemented we may have cemented you may have cemented they may have cemented
Perfeito com V-ing
I may have been cementing you may have been cementing he may have been cementing we may have been cementing you may have been cementing they may have been cementing
Negação
Forma simple
I mayn't cement you mayn't cement he mayn't cement we mayn't cement you mayn't cement they mayn't cement
Forma com V-ing
I mayn't be cementing you mayn't be cementing he mayn't be cementing we mayn't be cementing you mayn't be cementing they mayn't be cementing
Perfeito
I mayn't have cemented you mayn't have cemented he mayn't have cemented we mayn't have cemented you mayn't have cemented they mayn't have cemented
Perfeito com V-ing
I mayn't have been cementing you mayn't have been cementing he mayn't have been cementing we mayn't have been cementing you mayn't have been cementing they mayn't have been cementing
Forma interrogativa
Forma simple
may I cement? may you cement? may he cement? may we cement? may you cement? may they cement?
Forma com V-ing
may I be cementing? may you be cementing? may he be cementing? may we be cementing? may you be cementing? may they be cementing?
Perfeito
may I have cemented? may you have cemented? may he have cemented? may we have cemented? may you have cemented? may they have cemented?
Perfeito com V-ing
may I have been cementing? may you have been cementing? may he have been cementing? may we have been cementing? may you have been cementing? may they have been cementing?
Forma interro-Negação
Forma simple
mayn't I cement? mayn't you cement? mayn't he cement? mayn't we cement? mayn't you cement? mayn't they cement?
Forma com V-ing
mayn't I be cementing? mayn't you be cementing? mayn't he be cementing? mayn't we be cementing? mayn't you be cementing? mayn't they be cementing?
Perfeito
mayn't I have cemented? mayn't you have cemented? mayn't he have cemented? mayn't we have cemented? mayn't you have cemented? mayn't they have cemented?
Perfeito com V-ing
mayn't I have been cementing? mayn't you have been cementing? mayn't he have been cementing? mayn't we have been cementing? mayn't you have been cementing? mayn't they have been cementing?