I must burden you must burden she must burden we must burden you must burden they must burden
Forma com V-ing
I must be burdening you must be burdening she must be burdening we must be burdening you must be burdening they must be burdening
Perfeito
I must have burdened you must have burdened she must have burdened we must have burdened you must have burdened they must have burdened
Perfeito com V-ing
I must have been burdening you must have been burdening she must have been burdening we must have been burdening you must have been burdening they must have been burdening
Negação
Forma simple
I mustn't burden you mustn't burden she mustn't burden we mustn't burden you mustn't burden they mustn't burden
Forma com V-ing
I mustn't be burdening you mustn't be burdening she mustn't be burdening we mustn't be burdening you mustn't be burdening they mustn't be burdening
Perfeito
I mustn't have burdened you mustn't have burdened she mustn't have burdened we mustn't have burdened you mustn't have burdened they mustn't have burdened
Perfeito com V-ing
I mustn't have been burdening you mustn't have been burdening she mustn't have been burdening we mustn't have been burdening you mustn't have been burdening they mustn't have been burdening
Forma interrogativa
Forma simple
must I burden? must you burden? must she burden? must we burden? must you burden? must they burden?
Forma com V-ing
must I be burdening? must you be burdening? must she be burdening? must we be burdening? must you be burdening? must they be burdening?
Perfeito
must I have burdened? must you have burdened? must she have burdened? must we have burdened? must you have burdened? must they have burdened?
Perfeito com V-ing
must I have been burdening? must you have been burdening? must she have been burdening? must we have been burdening? must you have been burdening? must they have been burdening?
Forma interro-Negação
Forma simple
mustn't I burden? mustn't you burden? mustn't she burden? mustn't we burden? mustn't you burden? mustn't they burden?
Forma com V-ing
mustn't I be burdening? mustn't you be burdening? mustn't she be burdening? mustn't we be burdening? mustn't you be burdening? mustn't they be burdening?
Perfeito
mustn't I have burdened? mustn't you have burdened? mustn't she have burdened? mustn't we have burdened? mustn't you have burdened? mustn't they have burdened?
Perfeito com V-ing
mustn't I have been burdening? mustn't you have been burdening? mustn't she have been burdening? mustn't we have been burdening? mustn't you have been burdening? mustn't they have been burdening?