will weaken
Verbo regular: weaken - weakened- weakened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I will weaken
you will weaken
he will weaken
we will weaken
you will weaken
they will weaken 	I will be weakening
you will be weakening
he will be weakening
we will be weakening
you will be weakening
they will be weakening	I will have weakened
you will have weakened
he will have weakened
we will have weakened
you will have weakened
they will have weakened	I will have been weakening
you will have been weakening
he will have been weakening
we will have been weakening
you will have been weakening
they will have been weakening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I will not weaken
you will not weaken
he will not weaken
we will not weaken
you will not weaken
they will not weaken 	I will not be weakening
you will not be weakening
he will not be weakening
we will not be weakening
you will not be weakening
they will not be weakening	I will not have weakened
you will not have weakened
he will not have weakened
we will not have weakened
you will not have weakened
they will not have weakened	I will not have been weakening
you will not have been weakening
he will not have been weakening
we will not have been weakening
you will not have been weakening
they will not have been weakening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
will I weaken?
will you weaken?
will he weaken?
will we weaken?
will you weaken?
will they weaken? 	will I be weakening?
will you be weakening?
will he be weakening?
will we be weakening?
will you be weakening?
will they be weakening? 	will I have weakened?
will you have weakened?
will he have weakened?
will we have weakened?
will you have weakened?
will they have weakened? 	will I have been weakening?
will you have been weakening?
will he have been weakening?
will we have been weakening?
will you have been weakening?
will they have been weakening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
will I not weaken?
will you not weaken?
will he not weaken?
will we not weaken?
will you not weaken?
will they not weaken? 	will I not be weakening?
will you not be weakening?
will he not be weakening?
will we not be weakening?
will you not be weakening?
will they not be weakening? 	will I not have weakened?
will you not have weakened?
will he not have weakened?
will we not have weakened?
will you not have weakened?
will they not have weakened? 	will I not have been weakening?
will you not have been weakening?
will he not have been weakening?
will we not have been weakening?
will you not have been weakening?
will they not have been weakening?