must testify
Verbo regular: testify - testified- testified

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not testify
you must not testify
he must not testify
we must not testify
you must not testify
they must not testify 	I must not be testifying
you must not be testifying
he must not be testifying
we must not be testifying
you must not be testifying
they must not be testifying	I must not have testified
you must not have testified
he must not have testified
we must not have testified
you must not have testified
they must not have testified	I must not have been testifying
you must not have been testifying
he must not have been testifying
we must not have been testifying
you must not have been testifying
they must not have been testifying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not testify?
must you not testify?
must he not testify?
must we not testify?
must you not testify?
must they not testify? 	must I not be testifying?
must you not be testifying?
must he not be testifying?
must we not be testifying?
must you not be testifying?
must they not be testifying? 	must I not have testified?
must you not have testified?
must he not have testified?
must we not have testified?
must you not have testified?
must they not have testified? 	must I not have been testifying?
must you not have been testifying?
must he not have been testifying?
must we not have been testifying?
must you not have been testifying?
must they not have been testifying?