must plunge
Verbo regular: plunge - plunged- plunged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must plunge
you must plunge
she must plunge
we must plunge
you must plunge
they must plunge 	I must be plunging
you must be plunging
she must be plunging
we must be plunging
you must be plunging
they must be plunging	I must have plunged
you must have plunged
she must have plunged
we must have plunged
you must have plunged
they must have plunged	I must have been plunging
you must have been plunging
she must have been plunging
we must have been plunging
you must have been plunging
they must have been plunging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't plunge
you mustn't plunge
she mustn't plunge
we mustn't plunge
you mustn't plunge
they mustn't plunge 	I mustn't be plunging
you mustn't be plunging
she mustn't be plunging
we mustn't be plunging
you mustn't be plunging
they mustn't be plunging	I mustn't have plunged
you mustn't have plunged
she mustn't have plunged
we mustn't have plunged
you mustn't have plunged
they mustn't have plunged	I mustn't have been plunging
you mustn't have been plunging
she mustn't have been plunging
we mustn't have been plunging
you mustn't have been plunging
they mustn't have been plunging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I plunge?
must you plunge?
must she plunge?
must we plunge?
must you plunge?
must they plunge? 	must I be plunging?
must you be plunging?
must she be plunging?
must we be plunging?
must you be plunging?
must they be plunging? 	must I have plunged?
must you have plunged?
must she have plunged?
must we have plunged?
must you have plunged?
must they have plunged? 	must I have been plunging?
must you have been plunging?
must she have been plunging?
must we have been plunging?
must you have been plunging?
must they have been plunging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I plunge?
mustn't you plunge?
mustn't she plunge?
mustn't we plunge?
mustn't you plunge?
mustn't they plunge? 	mustn't I be plunging?
mustn't you be plunging?
mustn't she be plunging?
mustn't we be plunging?
mustn't you be plunging?
mustn't they be plunging? 	mustn't I have plunged?
mustn't you have plunged?
mustn't she have plunged?
mustn't we have plunged?
mustn't you have plunged?
mustn't they have plunged? 	mustn't I have been plunging?
mustn't you have been plunging?
mustn't she have been plunging?
mustn't we have been plunging?
mustn't you have been plunging?
mustn't they have been plunging?