must reproduce
Verbo regular: reproduce - reproduced- reproduced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must reproduce
you must reproduce
he must reproduce
we must reproduce
you must reproduce
they must reproduce 	I must be reproducing
you must be reproducing
he must be reproducing
we must be reproducing
you must be reproducing
they must be reproducing	I must have reproduced
you must have reproduced
he must have reproduced
we must have reproduced
you must have reproduced
they must have reproduced	I must have been reproducing
you must have been reproducing
he must have been reproducing
we must have been reproducing
you must have been reproducing
they must have been reproducing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't reproduce
you mustn't reproduce
he mustn't reproduce
we mustn't reproduce
you mustn't reproduce
they mustn't reproduce 	I mustn't be reproducing
you mustn't be reproducing
he mustn't be reproducing
we mustn't be reproducing
you mustn't be reproducing
they mustn't be reproducing	I mustn't have reproduced
you mustn't have reproduced
he mustn't have reproduced
we mustn't have reproduced
you mustn't have reproduced
they mustn't have reproduced	I mustn't have been reproducing
you mustn't have been reproducing
he mustn't have been reproducing
we mustn't have been reproducing
you mustn't have been reproducing
they mustn't have been reproducing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I reproduce?
must you reproduce?
must he reproduce?
must we reproduce?
must you reproduce?
must they reproduce? 	must I be reproducing?
must you be reproducing?
must he be reproducing?
must we be reproducing?
must you be reproducing?
must they be reproducing? 	must I have reproduced?
must you have reproduced?
must he have reproduced?
must we have reproduced?
must you have reproduced?
must they have reproduced? 	must I have been reproducing?
must you have been reproducing?
must he have been reproducing?
must we have been reproducing?
must you have been reproducing?
must they have been reproducing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I reproduce?
mustn't you reproduce?
mustn't he reproduce?
mustn't we reproduce?
mustn't you reproduce?
mustn't they reproduce? 	mustn't I be reproducing?
mustn't you be reproducing?
mustn't he be reproducing?
mustn't we be reproducing?
mustn't you be reproducing?
mustn't they be reproducing? 	mustn't I have reproduced?
mustn't you have reproduced?
mustn't he have reproduced?
mustn't we have reproduced?
mustn't you have reproduced?
mustn't they have reproduced? 	mustn't I have been reproducing?
mustn't you have been reproducing?
mustn't he have been reproducing?
mustn't we have been reproducing?
mustn't you have been reproducing?
mustn't they have been reproducing?