I must database you must database she must database we must database you must database they must database
Forma con V-ing
I must be databasing you must be databasing she must be databasing we must be databasing you must be databasing they must be databasing
Perfecto
I must have databased you must have databased she must have databased we must have databased you must have databased they must have databased
Perfecto con V-ing
I must have been databasing you must have been databasing she must have been databasing we must have been databasing you must have been databasing they must have been databasing
Negación
Forma simple
I mustn't database you mustn't database she mustn't database we mustn't database you mustn't database they mustn't database
Forma con V-ing
I mustn't be databasing you mustn't be databasing she mustn't be databasing we mustn't be databasing you mustn't be databasing they mustn't be databasing
Perfecto
I mustn't have databased you mustn't have databased she mustn't have databased we mustn't have databased you mustn't have databased they mustn't have databased
Perfecto con V-ing
I mustn't have been databasing you mustn't have been databasing she mustn't have been databasing we mustn't have been databasing you mustn't have been databasing they mustn't have been databasing
Forma interrogativa
Forma simple
must I database? must you database? must she database? must we database? must you database? must they database?
Forma con V-ing
must I be databasing? must you be databasing? must she be databasing? must we be databasing? must you be databasing? must they be databasing?
Perfecto
must I have databased? must you have databased? must she have databased? must we have databased? must you have databased? must they have databased?
Perfecto con V-ing
must I have been databasing? must you have been databasing? must she have been databasing? must we have been databasing? must you have been databasing? must they have been databasing?
Forma interro-negativa
Forma simple
mustn't I database? mustn't you database? mustn't she database? mustn't we database? mustn't you database? mustn't they database?
Forma con V-ing
mustn't I be databasing? mustn't you be databasing? mustn't she be databasing? mustn't we be databasing? mustn't you be databasing? mustn't they be databasing?
Perfecto
mustn't I have databased? mustn't you have databased? mustn't she have databased? mustn't we have databased? mustn't you have databased? mustn't they have databased?
Perfecto con V-ing
mustn't I have been databasing? mustn't you have been databasing? mustn't she have been databasing? mustn't we have been databasing? mustn't you have been databasing? mustn't they have been databasing?