I must krass you must krass she must krass we must krass you must krass they must krass
Forma com V-ing
I must be krassing you must be krassing she must be krassing we must be krassing you must be krassing they must be krassing
Perfeito
I must have krassed you must have krassed she must have krassed we must have krassed you must have krassed they must have krassed
Perfeito com V-ing
I must have been krassing you must have been krassing she must have been krassing we must have been krassing you must have been krassing they must have been krassing
Negação
Forma simple
I mustn't krass you mustn't krass she mustn't krass we mustn't krass you mustn't krass they mustn't krass
Forma com V-ing
I mustn't be krassing you mustn't be krassing she mustn't be krassing we mustn't be krassing you mustn't be krassing they mustn't be krassing
Perfeito
I mustn't have krassed you mustn't have krassed she mustn't have krassed we mustn't have krassed you mustn't have krassed they mustn't have krassed
Perfeito com V-ing
I mustn't have been krassing you mustn't have been krassing she mustn't have been krassing we mustn't have been krassing you mustn't have been krassing they mustn't have been krassing
Forma interrogativa
Forma simple
must I krass? must you krass? must she krass? must we krass? must you krass? must they krass?
Forma com V-ing
must I be krassing? must you be krassing? must she be krassing? must we be krassing? must you be krassing? must they be krassing?
Perfeito
must I have krassed? must you have krassed? must she have krassed? must we have krassed? must you have krassed? must they have krassed?
Perfeito com V-ing
must I have been krassing? must you have been krassing? must she have been krassing? must we have been krassing? must you have been krassing? must they have been krassing?
Forma interro-Negação
Forma simple
mustn't I krass? mustn't you krass? mustn't she krass? mustn't we krass? mustn't you krass? mustn't they krass?
Forma com V-ing
mustn't I be krassing? mustn't you be krassing? mustn't she be krassing? mustn't we be krassing? mustn't you be krassing? mustn't they be krassing?
Perfeito
mustn't I have krassed? mustn't you have krassed? mustn't she have krassed? mustn't we have krassed? mustn't you have krassed? mustn't they have krassed?
Perfeito com V-ing
mustn't I have been krassing? mustn't you have been krassing? mustn't she have been krassing? mustn't we have been krassing? mustn't you have been krassing? mustn't they have been krassing?