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