I can sum you can sum he can sum we can sum you can sum they can sum
Form mit V-ing
I can be summing you can be summing he can be summing we can be summing you can be summing they can be summing
Perfekt
I can have summed you can have summed he can have summed we can have summed you can have summed they can have summed
Perfekt mit V-ing
I can have been summing you can have been summing he can have been summing we can have been summing you can have been summing they can have been summing
Negation
Einfache Form
I can't sum you can't sum he can't sum we can't sum you can't sum they can't sum
Form mit V-ing
I can't be summing you can't be summing he can't be summing we can't be summing you can't be summing they can't be summing
Perfekt
I can't have summed you can't have summed he can't have summed we can't have summed you can't have summed they can't have summed
Perfekt mit V-ing
I can't have been summing you can't have been summing he can't have been summing we can't have been summing you can't have been summing they can't have been summing
Fragende Form
Einfache Form
can I sum? can you sum? can he sum? can we sum? can you sum? can they sum?
Form mit V-ing
can I be summing? can you be summing? can he be summing? can we be summing? can you be summing? can they be summing?
Perfekt
can I have summed? can you have summed? can he have summed? can we have summed? can you have summed? can they have summed?
Perfekt mit V-ing
can I have been summing? can you have been summing? can he have been summing? can we have been summing? can you have been summing? can they have been summing?
Fragende Negation Form
Einfache Form
can't I sum? can't you sum? can't he sum? can't we sum? can't you sum? can't they sum?
Form mit V-ing
can't I be summing? can't you be summing? can't he be summing? can't we be summing? can't you be summing? can't they be summing?
Perfekt
can't I have summed? can't you have summed? can't he have summed? can't we have summed? can't you have summed? can't they have summed?
Perfekt mit V-ing
can't I have been summing? can't you have been summing? can't he have been summing? can't we have been summing? can't you have been summing? can't they have been summing?