must compete
Verbo regular: compete - competed- competed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must compete
you must compete
he must compete
we must compete
you must compete
they must compete 	I must be competing
you must be competing
he must be competing
we must be competing
you must be competing
they must be competing	I must have competed
you must have competed
he must have competed
we must have competed
you must have competed
they must have competed	I must have been competing
you must have been competing
he must have been competing
we must have been competing
you must have been competing
they must have been competing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't compete
you mustn't compete
he mustn't compete
we mustn't compete
you mustn't compete
they mustn't compete 	I mustn't be competing
you mustn't be competing
he mustn't be competing
we mustn't be competing
you mustn't be competing
they mustn't be competing	I mustn't have competed
you mustn't have competed
he mustn't have competed
we mustn't have competed
you mustn't have competed
they mustn't have competed	I mustn't have been competing
you mustn't have been competing
he mustn't have been competing
we mustn't have been competing
you mustn't have been competing
they mustn't have been competing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I compete?
must you compete?
must he compete?
must we compete?
must you compete?
must they compete? 	must I be competing?
must you be competing?
must he be competing?
must we be competing?
must you be competing?
must they be competing? 	must I have competed?
must you have competed?
must he have competed?
must we have competed?
must you have competed?
must they have competed? 	must I have been competing?
must you have been competing?
must he have been competing?
must we have been competing?
must you have been competing?
must they have been competing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I compete?
mustn't you compete?
mustn't he compete?
mustn't we compete?
mustn't you compete?
mustn't they compete? 	mustn't I be competing?
mustn't you be competing?
mustn't he be competing?
mustn't we be competing?
mustn't you be competing?
mustn't they be competing? 	mustn't I have competed?
mustn't you have competed?
mustn't he have competed?
mustn't we have competed?
mustn't you have competed?
mustn't they have competed? 	mustn't I have been competing?
mustn't you have been competing?
mustn't he have been competing?
mustn't we have been competing?
mustn't you have been competing?
mustn't they have been competing?