must undertain
Regelmä&szlig;iges Verb: undertain - undertained- undertained

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must undertain
you must undertain
she must undertain
we must undertain
you must undertain
they must undertain 	I must be undertaining
you must be undertaining
she must be undertaining
we must be undertaining
you must be undertaining
they must be undertaining	I must have undertained
you must have undertained
she must have undertained
we must have undertained
you must have undertained
they must have undertained	I must have been undertaining
you must have been undertaining
she must have been undertaining
we must have been undertaining
you must have been undertaining
they must have been undertaining	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must not undertain
you must not undertain
she must not undertain
we must not undertain
you must not undertain
they must not undertain 	I must not be undertaining
you must not be undertaining
she must not be undertaining
we must not be undertaining
you must not be undertaining
they must not be undertaining	I must not have undertained
you must not have undertained
she must not have undertained
we must not have undertained
you must not have undertained
they must not have undertained	I must not have been undertaining
you must not have been undertaining
she must not have been undertaining
we must not have been undertaining
you must not have been undertaining
they must not have been undertaining	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I undertain?
must you undertain?
must she undertain?
must we undertain?
must you undertain?
must they undertain? 	must I be undertaining?
must you be undertaining?
must she be undertaining?
must we be undertaining?
must you be undertaining?
must they be undertaining? 	must I have undertained?
must you have undertained?
must she have undertained?
must we have undertained?
must you have undertained?
must they have undertained? 	must I have been undertaining?
must you have been undertaining?
must she have been undertaining?
must we have been undertaining?
must you have been undertaining?
must they have been undertaining? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I not undertain?
must you not undertain?
must she not undertain?
must we not undertain?
must you not undertain?
must they not undertain? 	must I not be undertaining?
must you not be undertaining?
must she not be undertaining?
must we not be undertaining?
must you not be undertaining?
must they not be undertaining? 	must I not have undertained?
must you not have undertained?
must she not have undertained?
must we not have undertained?
must you not have undertained?
must they not have undertained? 	must I not have been undertaining?
must you not have been undertaining?
must she not have been undertaining?
must we not have been undertaining?
must you not have been undertaining?
must they not have been undertaining?