I must sustain you must sustain she must sustain we must sustain you must sustain they must sustain
Form mit V-ing
I must be sustaining you must be sustaining she must be sustaining we must be sustaining you must be sustaining they must be sustaining
Perfekt
I must have sustained you must have sustained she must have sustained we must have sustained you must have sustained they must have sustained
Perfekt mit V-ing
I must have been sustaining you must have been sustaining she must have been sustaining we must have been sustaining you must have been sustaining they must have been sustaining
Negation
Einfache Form
I mustn't sustain you mustn't sustain she mustn't sustain we mustn't sustain you mustn't sustain they mustn't sustain
Form mit V-ing
I mustn't be sustaining you mustn't be sustaining she mustn't be sustaining we mustn't be sustaining you mustn't be sustaining they mustn't be sustaining
Perfekt
I mustn't have sustained you mustn't have sustained she mustn't have sustained we mustn't have sustained you mustn't have sustained they mustn't have sustained
Perfekt mit V-ing
I mustn't have been sustaining you mustn't have been sustaining she mustn't have been sustaining we mustn't have been sustaining you mustn't have been sustaining they mustn't have been sustaining
Fragende Form
Einfache Form
must I sustain? must you sustain? must she sustain? must we sustain? must you sustain? must they sustain?
Form mit V-ing
must I be sustaining? must you be sustaining? must she be sustaining? must we be sustaining? must you be sustaining? must they be sustaining?
Perfekt
must I have sustained? must you have sustained? must she have sustained? must we have sustained? must you have sustained? must they have sustained?
Perfekt mit V-ing
must I have been sustaining? must you have been sustaining? must she have been sustaining? must we have been sustaining? must you have been sustaining? must they have been sustaining?
Fragende Negation Form
Einfache Form
mustn't I sustain? mustn't you sustain? mustn't she sustain? mustn't we sustain? mustn't you sustain? mustn't they sustain?
Form mit V-ing
mustn't I be sustaining? mustn't you be sustaining? mustn't she be sustaining? mustn't we be sustaining? mustn't you be sustaining? mustn't they be sustaining?
Perfekt
mustn't I have sustained? mustn't you have sustained? mustn't she have sustained? mustn't we have sustained? mustn't you have sustained? mustn't they have sustained?
Perfekt mit V-ing
mustn't I have been sustaining? mustn't you have been sustaining? mustn't she have been sustaining? mustn't we have been sustaining? mustn't you have been sustaining? mustn't they have been sustaining?