I can sharpen you can sharpen he can sharpen we can sharpen you can sharpen they can sharpen
Form mit V-ing
I can be sharpening you can be sharpening he can be sharpening we can be sharpening you can be sharpening they can be sharpening
Perfekt
I can have sharpened you can have sharpened he can have sharpened we can have sharpened you can have sharpened they can have sharpened
Perfekt mit V-ing
I can have been sharpening you can have been sharpening he can have been sharpening we can have been sharpening you can have been sharpening they can have been sharpening
Negation
Einfache Form
I cannot sharpen you cannot sharpen he cannot sharpen we cannot sharpen you cannot sharpen they cannot sharpen
Form mit V-ing
I cannot be sharpening you cannot be sharpening he cannot be sharpening we cannot be sharpening you cannot be sharpening they cannot be sharpening
Perfekt
I cannot have sharpened you cannot have sharpened he cannot have sharpened we cannot have sharpened you cannot have sharpened they cannot have sharpened
Perfekt mit V-ing
I cannot have been sharpening you cannot have been sharpening he cannot have been sharpening we cannot have been sharpening you cannot have been sharpening they cannot have been sharpening
Fragende Form
Einfache Form
can I sharpen? can you sharpen? can he sharpen? can we sharpen? can you sharpen? can they sharpen?
Form mit V-ing
can I be sharpening? can you be sharpening? can he be sharpening? can we be sharpening? can you be sharpening? can they be sharpening?
Perfekt
can I have sharpened? can you have sharpened? can he have sharpened? can we have sharpened? can you have sharpened? can they have sharpened?
Perfekt mit V-ing
can I have been sharpening? can you have been sharpening? can he have been sharpening? can we have been sharpening? can you have been sharpening? can they have been sharpening?
Fragende Negation Form
Einfache Form
can I not sharpen? can you not sharpen? can he not sharpen? can we not sharpen? can you not sharpen? can they not sharpen?
Form mit V-ing
can I not be sharpening? can you not be sharpening? can he not be sharpening? can we not be sharpening? can you not be sharpening? can they not be sharpening?
Perfekt
can I not have sharpened? can you not have sharpened? can he not have sharpened? can we not have sharpened? can you not have sharpened? can they not have sharpened?
Perfekt mit V-ing
can I not have been sharpening? can you not have been sharpening? can he not have been sharpening? can we not have been sharpening? can you not have been sharpening? can they not have been sharpening?