must try
Verbo regular: try - tried- tried

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must try
you must try
he must try
we must try
you must try
they must try 	I must be trying
you must be trying
he must be trying
we must be trying
you must be trying
they must be trying	I must have tried
you must have tried
he must have tried
we must have tried
you must have tried
they must have tried	I must have been trying
you must have been trying
he must have been trying
we must have been trying
you must have been trying
they must have been trying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't try
you mustn't try
he mustn't try
we mustn't try
you mustn't try
they mustn't try 	I mustn't be trying
you mustn't be trying
he mustn't be trying
we mustn't be trying
you mustn't be trying
they mustn't be trying	I mustn't have tried
you mustn't have tried
he mustn't have tried
we mustn't have tried
you mustn't have tried
they mustn't have tried	I mustn't have been trying
you mustn't have been trying
he mustn't have been trying
we mustn't have been trying
you mustn't have been trying
they mustn't have been trying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I try?
must you try?
must he try?
must we try?
must you try?
must they try? 	must I be trying?
must you be trying?
must he be trying?
must we be trying?
must you be trying?
must they be trying? 	must I have tried?
must you have tried?
must he have tried?
must we have tried?
must you have tried?
must they have tried? 	must I have been trying?
must you have been trying?
must he have been trying?
must we have been trying?
must you have been trying?
must they have been trying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I try?
mustn't you try?
mustn't he try?
mustn't we try?
mustn't you try?
mustn't they try? 	mustn't I be trying?
mustn't you be trying?
mustn't he be trying?
mustn't we be trying?
mustn't you be trying?
mustn't they be trying? 	mustn't I have tried?
mustn't you have tried?
mustn't he have tried?
mustn't we have tried?
mustn't you have tried?
mustn't they have tried? 	mustn't I have been trying?
mustn't you have been trying?
mustn't he have been trying?
mustn't we have been trying?
mustn't you have been trying?
mustn't they have been trying?