I may engineer you may engineer she may engineer we may engineer you may engineer they may engineer
Forma con V-ing
I may be engineering you may be engineering she may be engineering we may be engineering you may be engineering they may be engineering
Perfecto
I may have engineered you may have engineered she may have engineered we may have engineered you may have engineered they may have engineered
Perfecto con V-ing
I may have been engineering you may have been engineering she may have been engineering we may have been engineering you may have been engineering they may have been engineering
Negación
Forma simple
I mayn't engineer you mayn't engineer she mayn't engineer we mayn't engineer you mayn't engineer they mayn't engineer
Forma con V-ing
I mayn't be engineering you mayn't be engineering she mayn't be engineering we mayn't be engineering you mayn't be engineering they mayn't be engineering
Perfecto
I mayn't have engineered you mayn't have engineered she mayn't have engineered we mayn't have engineered you mayn't have engineered they mayn't have engineered
Perfecto con V-ing
I mayn't have been engineering you mayn't have been engineering she mayn't have been engineering we mayn't have been engineering you mayn't have been engineering they mayn't have been engineering
Forma interrogativa
Forma simple
may I engineer? may you engineer? may she engineer? may we engineer? may you engineer? may they engineer?
Forma con V-ing
may I be engineering? may you be engineering? may she be engineering? may we be engineering? may you be engineering? may they be engineering?
Perfecto
may I have engineered? may you have engineered? may she have engineered? may we have engineered? may you have engineered? may they have engineered?
Perfecto con V-ing
may I have been engineering? may you have been engineering? may she have been engineering? may we have been engineering? may you have been engineering? may they have been engineering?
Forma interro-negativa
Forma simple
mayn't I engineer? mayn't you engineer? mayn't she engineer? mayn't we engineer? mayn't you engineer? mayn't they engineer?
Forma con V-ing
mayn't I be engineering? mayn't you be engineering? mayn't she be engineering? mayn't we be engineering? mayn't you be engineering? mayn't they be engineering?
Perfecto
mayn't I have engineered? mayn't you have engineered? mayn't she have engineered? mayn't we have engineered? mayn't you have engineered? mayn't they have engineered?
Perfecto con V-ing
mayn't I have been engineering? mayn't you have been engineering? mayn't she have been engineering? mayn't we have been engineering? mayn't you have been engineering? mayn't they have been engineering?