I must buck you must buck he must buck we must buck you must buck they must buck
Forma com V-ing
I must be bucking you must be bucking he must be bucking we must be bucking you must be bucking they must be bucking
Perfeito
I must have bucked you must have bucked he must have bucked we must have bucked you must have bucked they must have bucked
Perfeito com V-ing
I must have been bucking you must have been bucking he must have been bucking we must have been bucking you must have been bucking they must have been bucking
Negação
Forma simple
I mustn't buck you mustn't buck he mustn't buck we mustn't buck you mustn't buck they mustn't buck
Forma com V-ing
I mustn't be bucking you mustn't be bucking he mustn't be bucking we mustn't be bucking you mustn't be bucking they mustn't be bucking
Perfeito
I mustn't have bucked you mustn't have bucked he mustn't have bucked we mustn't have bucked you mustn't have bucked they mustn't have bucked
Perfeito com V-ing
I mustn't have been bucking you mustn't have been bucking he mustn't have been bucking we mustn't have been bucking you mustn't have been bucking they mustn't have been bucking
Forma interrogativa
Forma simple
must I buck? must you buck? must he buck? must we buck? must you buck? must they buck?
Forma com V-ing
must I be bucking? must you be bucking? must he be bucking? must we be bucking? must you be bucking? must they be bucking?
Perfeito
must I have bucked? must you have bucked? must he have bucked? must we have bucked? must you have bucked? must they have bucked?
Perfeito com V-ing
must I have been bucking? must you have been bucking? must he have been bucking? must we have been bucking? must you have been bucking? must they have been bucking?
Forma interro-Negação
Forma simple
mustn't I buck? mustn't you buck? mustn't he buck? mustn't we buck? mustn't you buck? mustn't they buck?
Forma com V-ing
mustn't I be bucking? mustn't you be bucking? mustn't he be bucking? mustn't we be bucking? mustn't you be bucking? mustn't they be bucking?
Perfeito
mustn't I have bucked? mustn't you have bucked? mustn't he have bucked? mustn't we have bucked? mustn't you have bucked? mustn't they have bucked?
Perfeito com V-ing
mustn't I have been bucking? mustn't you have been bucking? mustn't he have been bucking? mustn't we have been bucking? mustn't you have been bucking? mustn't they have been bucking?