can weaken
Regelmä&szlig;iges Verb: weaken - weakened- weakened

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit 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	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	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I cannot weaken
you cannot weaken
she cannot weaken
we cannot weaken
you cannot weaken
they cannot weaken 	I cannot be weakening
you cannot be weakening
she cannot be weakening
we cannot be weakening
you cannot be weakening
they cannot be weakening	I cannot have weakened
you cannot have weakened
she cannot have weakened
we cannot have weakened
you cannot have weakened
they cannot have weakened	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	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit 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? 	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? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
can I not weaken?
can you not weaken?
can she not weaken?
can we not weaken?
can you not weaken?
can they not weaken? 	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? 	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? 	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?