I could upgrade you could upgrade she could upgrade we could upgrade you could upgrade they could upgrade
Form mit V-ing
I could be upgrading you could be upgrading she could be upgrading we could be upgrading you could be upgrading they could be upgrading
Perfekt
I could have upgraded you could have upgraded she could have upgraded we could have upgraded you could have upgraded they could have upgraded
Perfekt mit V-ing
I could have been upgrading you could have been upgrading she could have been upgrading we could have been upgrading you could have been upgrading they could have been upgrading
Negation
Einfache Form
I could not upgrade you could not upgrade she could not upgrade we could not upgrade you could not upgrade they could not upgrade
Form mit V-ing
I could not be upgrading you could not be upgrading she could not be upgrading we could not be upgrading you could not be upgrading they could not be upgrading
Perfekt
I could not have upgraded you could not have upgraded she could not have upgraded we could not have upgraded you could not have upgraded they could not have upgraded
Perfekt mit V-ing
I could not have been upgrading you could not have been upgrading she could not have been upgrading we could not have been upgrading you could not have been upgrading they could not have been upgrading
Fragende Form
Einfache Form
could I upgrade? could you upgrade? could she upgrade? could we upgrade? could you upgrade? could they upgrade?
Form mit V-ing
could I be upgrading? could you be upgrading? could she be upgrading? could we be upgrading? could you be upgrading? could they be upgrading?
Perfekt
could I have upgraded? could you have upgraded? could she have upgraded? could we have upgraded? could you have upgraded? could they have upgraded?
Perfekt mit V-ing
could I have been upgrading? could you have been upgrading? could she have been upgrading? could we have been upgrading? could you have been upgrading? could they have been upgrading?
Fragende Negation Form
Einfache Form
could I not upgrade? could you not upgrade? could she not upgrade? could we not upgrade? could you not upgrade? could they not upgrade?
Form mit V-ing
could I not be upgrading? could you not be upgrading? could she not be upgrading? could we not be upgrading? could you not be upgrading? could they not be upgrading?
Perfekt
could I not have upgraded? could you not have upgraded? could she not have upgraded? could we not have upgraded? could you not have upgraded? could they not have upgraded?
Perfekt mit V-ing
could I not have been upgrading? could you not have been upgrading? could she not have been upgrading? could we not have been upgrading? could you not have been upgrading? could they not have been upgrading?