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 can't winnow you can't winnow he can't winnow we can't winnow you can't winnow they can't winnow
Forma con V-ing
I can't be winnowing you can't be winnowing he can't be winnowing we can't be winnowing you can't be winnowing they can't be winnowing
Perfecto
I can't have winnowed you can't have winnowed he can't have winnowed we can't have winnowed you can't have winnowed they can't have winnowed
Perfecto con V-ing
I can't have been winnowing you can't have been winnowing he can't have been winnowing we can't have been winnowing you can't have been winnowing they can't 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't I winnow? can't you winnow? can't he winnow? can't we winnow? can't you winnow? can't they winnow?
Forma con V-ing
can't I be winnowing? can't you be winnowing? can't he be winnowing? can't we be winnowing? can't you be winnowing? can't they be winnowing?
Perfecto
can't I have winnowed? can't you have winnowed? can't he have winnowed? can't we have winnowed? can't you have winnowed? can't they have winnowed?
Perfecto con V-ing
can't I have been winnowing? can't you have been winnowing? can't he have been winnowing? can't we have been winnowing? can't you have been winnowing? can't they have been winnowing?