I can winnow you can winnow he can winnow we can winnow you can winnow they can winnow
Forma con V-ing
I can be winnowing you can be winnowing he can be winnowing we can be winnowing you can be winnowing they can be winnowing
Perfecto
I can have winnowed you can have winnowed he can have winnowed we can have winnowed you can have winnowed they can have winnowed
Perfecto con V-ing
I can have been winnowing you can have been winnowing he can have been winnowing we can have been winnowing you can have been winnowing they can have been winnowing
Negación
Forma simple
I cannot winnow you cannot winnow he cannot winnow we cannot winnow you cannot winnow they cannot winnow
Forma con V-ing
I cannot be winnowing you cannot be winnowing he cannot be winnowing we cannot be winnowing you cannot be winnowing they cannot be winnowing
Perfecto
I cannot have winnowed you cannot have winnowed he cannot have winnowed we cannot have winnowed you cannot have winnowed they cannot have winnowed
Perfecto con V-ing
I cannot have been winnowing you cannot have been winnowing he cannot have been winnowing we cannot have been winnowing you cannot have been winnowing they cannot have been winnowing
Forma interrogativa
Forma simple
can I winnow? can you winnow? can he winnow? can we winnow? can you winnow? can they winnow?
Forma con V-ing
can I be winnowing? can you be winnowing? can he be winnowing? can we be winnowing? can you be winnowing? can they be winnowing?
Perfecto
can I have winnowed? can you have winnowed? can he have winnowed? can we have winnowed? can you have winnowed? can they have winnowed?
Perfecto con V-ing
can I have been winnowing? can you have been winnowing? can he have been winnowing? can we have been winnowing? can you have been winnowing? can they have been winnowing?
Forma interro-negativa
Forma simple
can I not winnow? can you not winnow? can he not winnow? can we not winnow? can you not winnow? can they not winnow?
Forma con V-ing
can I not be winnowing? can you not be winnowing? can he not be winnowing? can we not be winnowing? can you not be winnowing? can they not be winnowing?
Perfecto
can I not have winnowed? can you not have winnowed? can he not have winnowed? can we not have winnowed? can you not have winnowed? can they not have winnowed?
Perfecto con V-ing
can I not have been winnowing? can you not have been winnowing? can he not have been winnowing? can we not have been winnowing? can you not have been winnowing? can they not have been winnowing?