I can weaken you can weaken she can weaken we can weaken you can weaken they can weaken
Forma com V-ing
I can be weakening you can be weakening she can be weakening we can be weakening you can be weakening they can be weakening
Perfeito
I can have weakened you can have weakened she can have weakened we can have weakened you can have weakened they can have weakened
Perfeito com V-ing
I can have been weakening you can have been weakening she can have been weakening we can have been weakening you can have been weakening they can have been weakening
Negação
Forma simple
I cannot weaken you cannot weaken she cannot weaken we cannot weaken you cannot weaken they cannot weaken
Forma com V-ing
I cannot be weakening you cannot be weakening she cannot be weakening we cannot be weakening you cannot be weakening they cannot be weakening
Perfeito
I cannot have weakened you cannot have weakened she cannot have weakened we cannot have weakened you cannot have weakened they cannot have weakened
Perfeito com V-ing
I cannot have been weakening you cannot have been weakening she cannot have been weakening we cannot have been weakening you cannot have been weakening they cannot have been weakening
Forma interrogativa
Forma simple
can I weaken? can you weaken? can she weaken? can we weaken? can you weaken? can they weaken?
Forma com V-ing
can I be weakening? can you be weakening? can she be weakening? can we be weakening? can you be weakening? can they be weakening?
Perfeito
can I have weakened? can you have weakened? can she have weakened? can we have weakened? can you have weakened? can they have weakened?
Perfeito com V-ing
can I have been weakening? can you have been weakening? can she have been weakening? can we have been weakening? can you have been weakening? can they have been weakening?
Forma interro-Negação
Forma simple
can I not weaken? can you not weaken? can she not weaken? can we not weaken? can you not weaken? can they not weaken?
Forma com V-ing
can I not be weakening? can you not be weakening? can she not be weakening? can we not be weakening? can you not be weakening? can they not be weakening?
Perfeito
can I not have weakened? can you not have weakened? can she not have weakened? can we not have weakened? can you not have weakened? can they not have weakened?
Perfeito com V-ing
can I not have been weakening? can you not have been weakening? can she not have been weakening? can we not have been weakening? can you not have been weakening? can they not have been weakening?