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 must not tan
you must not tan
he must not tan
we must not tan
you must not tan
they must not tan 	I must not be tanning
you must not be tanning
he must not be tanning
we must not be tanning
you must not be tanning
they must not be tanning	I must not have tanned
you must not have tanned
he must not have tanned
we must not have tanned
you must not have tanned
they must not have tanned	I must not have been tanning
you must not have been tanning
he must not have been tanning
we must not have been tanning
you must not have been tanning
they must not 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 	
must I not tan?
must you not tan?
must he not tan?
must we not tan?
must you not tan?
must they not tan? 	must I not be tanning?
must you not be tanning?
must he not be tanning?
must we not be tanning?
must you not be tanning?
must they not be tanning? 	must I not have tanned?
must you not have tanned?
must he not have tanned?
must we not have tanned?
must you not have tanned?
must they not have tanned? 	must I not have been tanning?
must you not have been tanning?
must he not have been tanning?
must we not have been tanning?
must you not have been tanning?
must they not have been tanning?