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