I could sustain you could sustain he could sustain we could sustain you could sustain they could sustain
Form mit V-ing
I could be sustaining you could be sustaining he could be sustaining we could be sustaining you could be sustaining they could be sustaining
Perfekt
I could have sustained you could have sustained he could have sustained we could have sustained you could have sustained they could have sustained
Perfekt mit V-ing
I could have been sustaining you could have been sustaining he could have been sustaining we could have been sustaining you could have been sustaining they could have been sustaining
Negation
Einfache Form
I couldn't sustain you couldn't sustain he couldn't sustain we couldn't sustain you couldn't sustain they couldn't sustain
Form mit V-ing
I couldn't be sustaining you couldn't be sustaining he couldn't be sustaining we couldn't be sustaining you couldn't be sustaining they couldn't be sustaining
Perfekt
I couldn't have sustained you couldn't have sustained he couldn't have sustained we couldn't have sustained you couldn't have sustained they couldn't have sustained
Perfekt mit V-ing
I couldn't have been sustaining you couldn't have been sustaining he couldn't have been sustaining we couldn't have been sustaining you couldn't have been sustaining they couldn't have been sustaining
Fragende Form
Einfache Form
could I sustain? could you sustain? could he sustain? could we sustain? could you sustain? could they sustain?
Form mit V-ing
could I be sustaining? could you be sustaining? could he be sustaining? could we be sustaining? could you be sustaining? could they be sustaining?
Perfekt
could I have sustained? could you have sustained? could he have sustained? could we have sustained? could you have sustained? could they have sustained?
Perfekt mit V-ing
could I have been sustaining? could you have been sustaining? could he have been sustaining? could we have been sustaining? could you have been sustaining? could they have been sustaining?
Fragende Negation Form
Einfache Form
couldn't I sustain? couldn't you sustain? couldn't he sustain? couldn't we sustain? couldn't you sustain? couldn't they sustain?
Form mit V-ing
couldn't I be sustaining? couldn't you be sustaining? couldn't he be sustaining? couldn't we be sustaining? couldn't you be sustaining? couldn't they be sustaining?
Perfekt
couldn't I have sustained? couldn't you have sustained? couldn't he have sustained? couldn't we have sustained? couldn't you have sustained? couldn't they have sustained?
Perfekt mit V-ing
couldn't I have been sustaining? couldn't you have been sustaining? couldn't he have been sustaining? couldn't we have been sustaining? couldn't you have been sustaining? couldn't they have been sustaining?