must harden
Regelmä&szlig;iges Verb: harden - hardened- hardened

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must harden
you must harden
he must harden
we must harden
you must harden
they must harden 	I must be hardening
you must be hardening
he must be hardening
we must be hardening
you must be hardening
they must be hardening	I must have hardened
you must have hardened
he must have hardened
we must have hardened
you must have hardened
they must have hardened	I must have been hardening
you must have been hardening
he must have been hardening
we must have been hardening
you must have been hardening
they must have been hardening	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must not harden
you must not harden
he must not harden
we must not harden
you must not harden
they must not harden 	I must not be hardening
you must not be hardening
he must not be hardening
we must not be hardening
you must not be hardening
they must not be hardening	I must not have hardened
you must not have hardened
he must not have hardened
we must not have hardened
you must not have hardened
they must not have hardened	I must not have been hardening
you must not have been hardening
he must not have been hardening
we must not have been hardening
you must not have been hardening
they must not have been hardening	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I harden?
must you harden?
must he harden?
must we harden?
must you harden?
must they harden? 	must I be hardening?
must you be hardening?
must he be hardening?
must we be hardening?
must you be hardening?
must they be hardening? 	must I have hardened?
must you have hardened?
must he have hardened?
must we have hardened?
must you have hardened?
must they have hardened? 	must I have been hardening?
must you have been hardening?
must he have been hardening?
must we have been hardening?
must you have been hardening?
must they have been hardening? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I not harden?
must you not harden?
must he not harden?
must we not harden?
must you not harden?
must they not harden? 	must I not be hardening?
must you not be hardening?
must he not be hardening?
must we not be hardening?
must you not be hardening?
must they not be hardening? 	must I not have hardened?
must you not have hardened?
must he not have hardened?
must we not have hardened?
must you not have hardened?
must they not have hardened? 	must I not have been hardening?
must you not have been hardening?
must he not have been hardening?
must we not have been hardening?
must you not have been hardening?
must they not have been hardening?