must plunk
Verbo regular: plunk - plunked- plunked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must plunk
you must plunk
he must plunk
we must plunk
you must plunk
they must plunk 	I must be plunking
you must be plunking
he must be plunking
we must be plunking
you must be plunking
they must be plunking	I must have plunked
you must have plunked
he must have plunked
we must have plunked
you must have plunked
they must have plunked	I must have been plunking
you must have been plunking
he must have been plunking
we must have been plunking
you must have been plunking
they must have been plunking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't plunk
you mustn't plunk
he mustn't plunk
we mustn't plunk
you mustn't plunk
they mustn't plunk 	I mustn't be plunking
you mustn't be plunking
he mustn't be plunking
we mustn't be plunking
you mustn't be plunking
they mustn't be plunking	I mustn't have plunked
you mustn't have plunked
he mustn't have plunked
we mustn't have plunked
you mustn't have plunked
they mustn't have plunked	I mustn't have been plunking
you mustn't have been plunking
he mustn't have been plunking
we mustn't have been plunking
you mustn't have been plunking
they mustn't have been plunking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I plunk?
must you plunk?
must he plunk?
must we plunk?
must you plunk?
must they plunk? 	must I be plunking?
must you be plunking?
must he be plunking?
must we be plunking?
must you be plunking?
must they be plunking? 	must I have plunked?
must you have plunked?
must he have plunked?
must we have plunked?
must you have plunked?
must they have plunked? 	must I have been plunking?
must you have been plunking?
must he have been plunking?
must we have been plunking?
must you have been plunking?
must they have been plunking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I plunk?
mustn't you plunk?
mustn't he plunk?
mustn't we plunk?
mustn't you plunk?
mustn't they plunk? 	mustn't I be plunking?
mustn't you be plunking?
mustn't he be plunking?
mustn't we be plunking?
mustn't you be plunking?
mustn't they be plunking? 	mustn't I have plunked?
mustn't you have plunked?
mustn't he have plunked?
mustn't we have plunked?
mustn't you have plunked?
mustn't they have plunked? 	mustn't I have been plunking?
mustn't you have been plunking?
mustn't he have been plunking?
mustn't we have been plunking?
mustn't you have been plunking?
mustn't they have been plunking?