I can sharpen you can sharpen she can sharpen we can sharpen you can sharpen they can sharpen
Forma con V-ing
I can be sharpening you can be sharpening she can be sharpening we can be sharpening you can be sharpening they can be sharpening
Perfetto
I can have sharpened you can have sharpened she can have sharpened we can have sharpened you can have sharpened they can have sharpened
Perfetto con V-ing
I can have been sharpening you can have been sharpening she can have been sharpening we can have been sharpening you can have been sharpening they can have been sharpening
Negazione
Forma semplice
I cannot sharpen you cannot sharpen she cannot sharpen we cannot sharpen you cannot sharpen they cannot sharpen
Forma con V-ing
I cannot be sharpening you cannot be sharpening she cannot be sharpening we cannot be sharpening you cannot be sharpening they cannot be sharpening
Perfetto
I cannot have sharpened you cannot have sharpened she cannot have sharpened we cannot have sharpened you cannot have sharpened they cannot have sharpened
Perfetto con V-ing
I cannot have been sharpening you cannot have been sharpening she cannot have been sharpening we cannot have been sharpening you cannot have been sharpening they cannot have been sharpening
Forma interrogativa
Forma semplice
can I sharpen? can you sharpen? can she sharpen? can we sharpen? can you sharpen? can they sharpen?
Forma con V-ing
can I be sharpening? can you be sharpening? can she be sharpening? can we be sharpening? can you be sharpening? can they be sharpening?
Perfetto
can I have sharpened? can you have sharpened? can she have sharpened? can we have sharpened? can you have sharpened? can they have sharpened?
Perfetto con V-ing
can I have been sharpening? can you have been sharpening? can she have been sharpening? can we have been sharpening? can you have been sharpening? can they have been sharpening?
Forma interro-negativa
Forma semplice
can I not sharpen? can you not sharpen? can she not sharpen? can we not sharpen? can you not sharpen? can they not sharpen?
Forma con V-ing
can I not be sharpening? can you not be sharpening? can she not be sharpening? can we not be sharpening? can you not be sharpening? can they not be sharpening?
Perfetto
can I not have sharpened? can you not have sharpened? can she not have sharpened? can we not have sharpened? can you not have sharpened? can they not have sharpened?
Perfetto con V-ing
can I not have been sharpening? can you not have been sharpening? can she not have been sharpening? can we not have been sharpening? can you not have been sharpening? can they not have been sharpening?