I could backcheck you could backcheck he could backcheck we could backcheck you could backcheck they could backcheck
Form mit V-ing
I could be backchecking you could be backchecking he could be backchecking we could be backchecking you could be backchecking they could be backchecking
Perfekt
I could have backchecked you could have backchecked he could have backchecked we could have backchecked you could have backchecked they could have backchecked
Perfekt mit V-ing
I could have been backchecking you could have been backchecking he could have been backchecking we could have been backchecking you could have been backchecking they could have been backchecking
Negation
Einfache Form
I couldn't backcheck you couldn't backcheck he couldn't backcheck we couldn't backcheck you couldn't backcheck they couldn't backcheck
Form mit V-ing
I couldn't be backchecking you couldn't be backchecking he couldn't be backchecking we couldn't be backchecking you couldn't be backchecking they couldn't be backchecking
Perfekt
I couldn't have backchecked you couldn't have backchecked he couldn't have backchecked we couldn't have backchecked you couldn't have backchecked they couldn't have backchecked
Perfekt mit V-ing
I couldn't have been backchecking you couldn't have been backchecking he couldn't have been backchecking we couldn't have been backchecking you couldn't have been backchecking they couldn't have been backchecking
Fragende Form
Einfache Form
could I backcheck? could you backcheck? could he backcheck? could we backcheck? could you backcheck? could they backcheck?
Form mit V-ing
could I be backchecking? could you be backchecking? could he be backchecking? could we be backchecking? could you be backchecking? could they be backchecking?
Perfekt
could I have backchecked? could you have backchecked? could he have backchecked? could we have backchecked? could you have backchecked? could they have backchecked?
Perfekt mit V-ing
could I have been backchecking? could you have been backchecking? could he have been backchecking? could we have been backchecking? could you have been backchecking? could they have been backchecking?
Fragende Negation Form
Einfache Form
couldn't I backcheck? couldn't you backcheck? couldn't he backcheck? couldn't we backcheck? couldn't you backcheck? couldn't they backcheck?
Form mit V-ing
couldn't I be backchecking? couldn't you be backchecking? couldn't he be backchecking? couldn't we be backchecking? couldn't you be backchecking? couldn't they be backchecking?
Perfekt
couldn't I have backchecked? couldn't you have backchecked? couldn't he have backchecked? couldn't we have backchecked? couldn't you have backchecked? couldn't they have backchecked?
Perfekt mit V-ing
couldn't I have been backchecking? couldn't you have been backchecking? couldn't he have been backchecking? couldn't we have been backchecking? couldn't you have been backchecking? couldn't they have been backchecking?