Verbo regular: preoccupy - preoccupied - preoccupied
Afirmación
Forma simple
I must preoccupy you must preoccupy she must preoccupy we must preoccupy you must preoccupy they must preoccupy
Forma con V-ing
I must be preoccupying you must be preoccupying she must be preoccupying we must be preoccupying you must be preoccupying they must be preoccupying
Perfecto
I must have preoccupied you must have preoccupied she must have preoccupied we must have preoccupied you must have preoccupied they must have preoccupied
Perfecto con V-ing
I must have been preoccupying you must have been preoccupying she must have been preoccupying we must have been preoccupying you must have been preoccupying they must have been preoccupying
Negación
Forma simple
I mustn't preoccupy you mustn't preoccupy she mustn't preoccupy we mustn't preoccupy you mustn't preoccupy they mustn't preoccupy
Forma con V-ing
I mustn't be preoccupying you mustn't be preoccupying she mustn't be preoccupying we mustn't be preoccupying you mustn't be preoccupying they mustn't be preoccupying
Perfecto
I mustn't have preoccupied you mustn't have preoccupied she mustn't have preoccupied we mustn't have preoccupied you mustn't have preoccupied they mustn't have preoccupied
Perfecto con V-ing
I mustn't have been preoccupying you mustn't have been preoccupying she mustn't have been preoccupying we mustn't have been preoccupying you mustn't have been preoccupying they mustn't have been preoccupying
Forma interrogativa
Forma simple
must I preoccupy? must you preoccupy? must she preoccupy? must we preoccupy? must you preoccupy? must they preoccupy?
Forma con V-ing
must I be preoccupying? must you be preoccupying? must she be preoccupying? must we be preoccupying? must you be preoccupying? must they be preoccupying?
Perfecto
must I have preoccupied? must you have preoccupied? must she have preoccupied? must we have preoccupied? must you have preoccupied? must they have preoccupied?
Perfecto con V-ing
must I have been preoccupying? must you have been preoccupying? must she have been preoccupying? must we have been preoccupying? must you have been preoccupying? must they have been preoccupying?
Forma interro-negativa
Forma simple
mustn't I preoccupy? mustn't you preoccupy? mustn't she preoccupy? mustn't we preoccupy? mustn't you preoccupy? mustn't they preoccupy?
Forma con V-ing
mustn't I be preoccupying? mustn't you be preoccupying? mustn't she be preoccupying? mustn't we be preoccupying? mustn't you be preoccupying? mustn't they be preoccupying?
Perfecto
mustn't I have preoccupied? mustn't you have preoccupied? mustn't she have preoccupied? mustn't we have preoccupied? mustn't you have preoccupied? mustn't they have preoccupied?
Perfecto con V-ing
mustn't I have been preoccupying? mustn't you have been preoccupying? mustn't she have been preoccupying? mustn't we have been preoccupying? mustn't you have been preoccupying? mustn't they have been preoccupying?