Conjugação do verbo inglês
CAN WEAKEN

Verbo regular: weaken - weakened - weakened

Afirmação

Forma simple	Forma com V-ing
I can weaken you can weaken she can weaken we can weaken you can weaken they can weaken	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	Perfeito com V-ing
I can have weakened you can have weakened she can have weakened we can have weakened you can have weakened they can have weakened	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	Forma com V-ing
I can't weaken you can't weaken she can't weaken we can't weaken you can't weaken they can't weaken	I can't be weakening you can't be weakening she can't be weakening we can't be weakening you can't be weakening they can't be weakening
Perfeito	Perfeito com V-ing
I can't have weakened you can't have weakened she can't have weakened we can't have weakened you can't have weakened they can't have weakened	I can't have been weakening you can't have been weakening she can't have been weakening we can't have been weakening you can't have been weakening they can't have been weakening

Forma interrogativa

Forma simple	Forma com V-ing
can I weaken? can you weaken? can she weaken? can we weaken? can you weaken? can they weaken?	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	Perfeito com V-ing
can I have weakened? can you have weakened? can she have weakened? can we have weakened? can you have weakened? can they have weakened?	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	Forma com V-ing
can't I weaken? can't you weaken? can't she weaken? can't we weaken? can't you weaken? can't they weaken?	can't I be weakening? can't you be weakening? can't she be weakening? can't we be weakening? can't you be weakening? can't they be weakening?
Perfeito	Perfeito com V-ing
can't I have weakened? can't you have weakened? can't she have weakened? can't we have weakened? can't you have weakened? can't they have weakened?	can't I have been weakening? can't you have been weakening? can't she have been weakening? can't we have been weakening? can't you have been weakening? can't they have been weakening?