must tan
Verbo regular: tan - tanned- tanned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tan
you must tan
he must tan
we must tan
you must tan
they must tan 	I must be tanning
you must be tanning
he must be tanning
we must be tanning
you must be tanning
they must be tanning	I must have tanned
you must have tanned
he must have tanned
we must have tanned
you must have tanned
they must have tanned	I must have been tanning
you must have been tanning
he must have been tanning
we must have been tanning
you must have been tanning
they must have been tanning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't tan
you mustn't tan
he mustn't tan
we mustn't tan
you mustn't tan
they mustn't tan 	I mustn't be tanning
you mustn't be tanning
he mustn't be tanning
we mustn't be tanning
you mustn't be tanning
they mustn't be tanning	I mustn't have tanned
you mustn't have tanned
he mustn't have tanned
we mustn't have tanned
you mustn't have tanned
they mustn't have tanned	I mustn't have been tanning
you mustn't have been tanning
he mustn't have been tanning
we mustn't have been tanning
you mustn't have been tanning
they mustn't have been tanning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tan?
must you tan?
must he tan?
must we tan?
must you tan?
must they tan? 	must I be tanning?
must you be tanning?
must he be tanning?
must we be tanning?
must you be tanning?
must they be tanning? 	must I have tanned?
must you have tanned?
must he have tanned?
must we have tanned?
must you have tanned?
must they have tanned? 	must I have been tanning?
must you have been tanning?
must he have been tanning?
must we have been tanning?
must you have been tanning?
must they have been tanning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I tan?
mustn't you tan?
mustn't he tan?
mustn't we tan?
mustn't you tan?
mustn't they tan? 	mustn't I be tanning?
mustn't you be tanning?
mustn't he be tanning?
mustn't we be tanning?
mustn't you be tanning?
mustn't they be tanning? 	mustn't I have tanned?
mustn't you have tanned?
mustn't he have tanned?
mustn't we have tanned?
mustn't you have tanned?
mustn't they have tanned? 	mustn't I have been tanning?
mustn't you have been tanning?
mustn't he have been tanning?
mustn't we have been tanning?
mustn't you have been tanning?
mustn't they have been tanning?