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 may not cement you may not cement he may not cement we may not cement you may not cement they may not cement
Forma com V-ing
I may not be cementing you may not be cementing he may not be cementing we may not be cementing you may not be cementing they may not be cementing
Perfeito
I may not have cemented you may not have cemented he may not have cemented we may not have cemented you may not have cemented they may not have cemented
Perfeito com V-ing
I may not have been cementing you may not have been cementing he may not have been cementing we may not have been cementing you may not have been cementing they may not 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
may I not cement? may you not cement? may he not cement? may we not cement? may you not cement? may they not cement?
Forma com V-ing
may I not be cementing? may you not be cementing? may he not be cementing? may we not be cementing? may you not be cementing? may they not be cementing?
Perfeito
may I not have cemented? may you not have cemented? may he not have cemented? may we not have cemented? may you not have cemented? may they not have cemented?
Perfeito com V-ing
may I not have been cementing? may you not have been cementing? may he not have been cementing? may we not have been cementing? may you not have been cementing? may they not have been cementing?