must nitrate
Verbo regular: nitrate - nitrated- nitrated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must nitrate
you must nitrate
he must nitrate
we must nitrate
you must nitrate
they must nitrate 	I must be nitrating
you must be nitrating
he must be nitrating
we must be nitrating
you must be nitrating
they must be nitrating	I must have nitrated
you must have nitrated
he must have nitrated
we must have nitrated
you must have nitrated
they must have nitrated	I must have been nitrating
you must have been nitrating
he must have been nitrating
we must have been nitrating
you must have been nitrating
they must have been nitrating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't nitrate
you mustn't nitrate
he mustn't nitrate
we mustn't nitrate
you mustn't nitrate
they mustn't nitrate 	I mustn't be nitrating
you mustn't be nitrating
he mustn't be nitrating
we mustn't be nitrating
you mustn't be nitrating
they mustn't be nitrating	I mustn't have nitrated
you mustn't have nitrated
he mustn't have nitrated
we mustn't have nitrated
you mustn't have nitrated
they mustn't have nitrated	I mustn't have been nitrating
you mustn't have been nitrating
he mustn't have been nitrating
we mustn't have been nitrating
you mustn't have been nitrating
they mustn't have been nitrating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I nitrate?
must you nitrate?
must he nitrate?
must we nitrate?
must you nitrate?
must they nitrate? 	must I be nitrating?
must you be nitrating?
must he be nitrating?
must we be nitrating?
must you be nitrating?
must they be nitrating? 	must I have nitrated?
must you have nitrated?
must he have nitrated?
must we have nitrated?
must you have nitrated?
must they have nitrated? 	must I have been nitrating?
must you have been nitrating?
must he have been nitrating?
must we have been nitrating?
must you have been nitrating?
must they have been nitrating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I nitrate?
mustn't you nitrate?
mustn't he nitrate?
mustn't we nitrate?
mustn't you nitrate?
mustn't they nitrate? 	mustn't I be nitrating?
mustn't you be nitrating?
mustn't he be nitrating?
mustn't we be nitrating?
mustn't you be nitrating?
mustn't they be nitrating? 	mustn't I have nitrated?
mustn't you have nitrated?
mustn't he have nitrated?
mustn't we have nitrated?
mustn't you have nitrated?
mustn't they have nitrated? 	mustn't I have been nitrating?
mustn't you have been nitrating?
mustn't he have been nitrating?
mustn't we have been nitrating?
mustn't you have been nitrating?
mustn't they have been nitrating?