must testify
Verbo regular: testify - testified- testified

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must testify
you must testify
he must testify
we must testify
you must testify
they must testify 	I must be testifying
you must be testifying
he must be testifying
we must be testifying
you must be testifying
they must be testifying	I must have testified
you must have testified
he must have testified
we must have testified
you must have testified
they must have testified	I must have been testifying
you must have been testifying
he must have been testifying
we must have been testifying
you must have been testifying
they must have been testifying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't testify
you mustn't testify
he mustn't testify
we mustn't testify
you mustn't testify
they mustn't testify 	I mustn't be testifying
you mustn't be testifying
he mustn't be testifying
we mustn't be testifying
you mustn't be testifying
they mustn't be testifying	I mustn't have testified
you mustn't have testified
he mustn't have testified
we mustn't have testified
you mustn't have testified
they mustn't have testified	I mustn't have been testifying
you mustn't have been testifying
he mustn't have been testifying
we mustn't have been testifying
you mustn't have been testifying
they mustn't have been testifying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I testify?
must you testify?
must he testify?
must we testify?
must you testify?
must they testify? 	must I be testifying?
must you be testifying?
must he be testifying?
must we be testifying?
must you be testifying?
must they be testifying? 	must I have testified?
must you have testified?
must he have testified?
must we have testified?
must you have testified?
must they have testified? 	must I have been testifying?
must you have been testifying?
must he have been testifying?
must we have been testifying?
must you have been testifying?
must they have been testifying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I testify?
mustn't you testify?
mustn't he testify?
mustn't we testify?
mustn't you testify?
mustn't they testify? 	mustn't I be testifying?
mustn't you be testifying?
mustn't he be testifying?
mustn't we be testifying?
mustn't you be testifying?
mustn't they be testifying? 	mustn't I have testified?
mustn't you have testified?
mustn't he have testified?
mustn't we have testified?
mustn't you have testified?
mustn't they have testified? 	mustn't I have been testifying?
mustn't you have been testifying?
mustn't he have been testifying?
mustn't we have been testifying?
mustn't you have been testifying?
mustn't they have been testifying?