must underact
Verbo regolare: underact - underacted- underacted

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must underact
you must underact
he must underact
we must underact
you must underact
they must underact 	I must be underacting
you must be underacting
he must be underacting
we must be underacting
you must be underacting
they must be underacting	I must have underacted
you must have underacted
he must have underacted
we must have underacted
you must have underacted
they must have underacted	I must have been underacting
you must have been underacting
he must have been underacting
we must have been underacting
you must have been underacting
they must have been underacting	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not underact
you must not underact
he must not underact
we must not underact
you must not underact
they must not underact 	I must not be underacting
you must not be underacting
he must not be underacting
we must not be underacting
you must not be underacting
they must not be underacting	I must not have underacted
you must not have underacted
he must not have underacted
we must not have underacted
you must not have underacted
they must not have underacted	I must not have been underacting
you must not have been underacting
he must not have been underacting
we must not have been underacting
you must not have been underacting
they must not have been underacting	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I underact?
must you underact?
must he underact?
must we underact?
must you underact?
must they underact? 	must I be underacting?
must you be underacting?
must he be underacting?
must we be underacting?
must you be underacting?
must they be underacting? 	must I have underacted?
must you have underacted?
must he have underacted?
must we have underacted?
must you have underacted?
must they have underacted? 	must I have been underacting?
must you have been underacting?
must he have been underacting?
must we have been underacting?
must you have been underacting?
must they have been underacting? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not underact?
must you not underact?
must he not underact?
must we not underact?
must you not underact?
must they not underact? 	must I not be underacting?
must you not be underacting?
must he not be underacting?
must we not be underacting?
must you not be underacting?
must they not be underacting? 	must I not have underacted?
must you not have underacted?
must he not have underacted?
must we not have underacted?
must you not have underacted?
must they not have underacted? 	must I not have been underacting?
must you not have been underacting?
must he not have been underacting?
must we not have been underacting?
must you not have been underacting?
must they not have been underacting?