I must throb you must throb he must throb we must throb you must throb they must throb
Forma com V-ing
I must be throbbing you must be throbbing he must be throbbing we must be throbbing you must be throbbing they must be throbbing
Perfeito
I must have throbbed you must have throbbed he must have throbbed we must have throbbed you must have throbbed they must have throbbed
Perfeito com V-ing
I must have been throbbing you must have been throbbing he must have been throbbing we must have been throbbing you must have been throbbing they must have been throbbing
Negação
Forma simple
I mustn't throb you mustn't throb he mustn't throb we mustn't throb you mustn't throb they mustn't throb
Forma com V-ing
I mustn't be throbbing you mustn't be throbbing he mustn't be throbbing we mustn't be throbbing you mustn't be throbbing they mustn't be throbbing
Perfeito
I mustn't have throbbed you mustn't have throbbed he mustn't have throbbed we mustn't have throbbed you mustn't have throbbed they mustn't have throbbed
Perfeito com V-ing
I mustn't have been throbbing you mustn't have been throbbing he mustn't have been throbbing we mustn't have been throbbing you mustn't have been throbbing they mustn't have been throbbing
Forma interrogativa
Forma simple
must I throb? must you throb? must he throb? must we throb? must you throb? must they throb?
Forma com V-ing
must I be throbbing? must you be throbbing? must he be throbbing? must we be throbbing? must you be throbbing? must they be throbbing?
Perfeito
must I have throbbed? must you have throbbed? must he have throbbed? must we have throbbed? must you have throbbed? must they have throbbed?
Perfeito com V-ing
must I have been throbbing? must you have been throbbing? must he have been throbbing? must we have been throbbing? must you have been throbbing? must they have been throbbing?
Forma interro-Negação
Forma simple
mustn't I throb? mustn't you throb? mustn't he throb? mustn't we throb? mustn't you throb? mustn't they throb?
Forma com V-ing
mustn't I be throbbing? mustn't you be throbbing? mustn't he be throbbing? mustn't we be throbbing? mustn't you be throbbing? mustn't they be throbbing?
Perfeito
mustn't I have throbbed? mustn't you have throbbed? mustn't he have throbbed? mustn't we have throbbed? mustn't you have throbbed? mustn't they have throbbed?
Perfeito com V-ing
mustn't I have been throbbing? mustn't you have been throbbing? mustn't he have been throbbing? mustn't we have been throbbing? mustn't you have been throbbing? mustn't they have been throbbing?