I can sign you can sign he can sign we can sign you can sign they can sign
Form mit V-ing
I can be signing you can be signing he can be signing we can be signing you can be signing they can be signing
Perfekt
I can have signed you can have signed he can have signed we can have signed you can have signed they can have signed
Perfekt mit V-ing
I can have been signing you can have been signing he can have been signing we can have been signing you can have been signing they can have been signing
Negation
Einfache Form
I can't sign you can't sign he can't sign we can't sign you can't sign they can't sign
Form mit V-ing
I can't be signing you can't be signing he can't be signing we can't be signing you can't be signing they can't be signing
Perfekt
I can't have signed you can't have signed he can't have signed we can't have signed you can't have signed they can't have signed
Perfekt mit V-ing
I can't have been signing you can't have been signing he can't have been signing we can't have been signing you can't have been signing they can't have been signing
Fragende Form
Einfache Form
can I sign? can you sign? can he sign? can we sign? can you sign? can they sign?
Form mit V-ing
can I be signing? can you be signing? can he be signing? can we be signing? can you be signing? can they be signing?
Perfekt
can I have signed? can you have signed? can he have signed? can we have signed? can you have signed? can they have signed?
Perfekt mit V-ing
can I have been signing? can you have been signing? can he have been signing? can we have been signing? can you have been signing? can they have been signing?
Fragende Negation Form
Einfache Form
can't I sign? can't you sign? can't he sign? can't we sign? can't you sign? can't they sign?
Form mit V-ing
can't I be signing? can't you be signing? can't he be signing? can't we be signing? can't you be signing? can't they be signing?
Perfekt
can't I have signed? can't you have signed? can't he have signed? can't we have signed? can't you have signed? can't they have signed?
Perfekt mit V-ing
can't I have been signing? can't you have been signing? can't he have been signing? can't we have been signing? can't you have been signing? can't they have been signing?