could tan
Verbo regolare: tan - tanned- tanned

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could tan
you could tan
he could tan
we could tan
you could tan
they could tan 	I could be tanning
you could be tanning
he could be tanning
we could be tanning
you could be tanning
they could be tanning	I could have tanned
you could have tanned
he could have tanned
we could have tanned
you could have tanned
they could have tanned	I could have been tanning
you could have been tanning
he could have been tanning
we could have been tanning
you could have been tanning
they could have been tanning	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not tan
you could not tan
he could not tan
we could not tan
you could not tan
they could not tan 	I could not be tanning
you could not be tanning
he could not be tanning
we could not be tanning
you could not be tanning
they could not be tanning	I could not have tanned
you could not have tanned
he could not have tanned
we could not have tanned
you could not have tanned
they could not have tanned	I could not have been tanning
you could not have been tanning
he could not have been tanning
we could not have been tanning
you could not have been tanning
they could not have been tanning	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I tan?
could you tan?
could he tan?
could we tan?
could you tan?
could they tan? 	could I be tanning?
could you be tanning?
could he be tanning?
could we be tanning?
could you be tanning?
could they be tanning? 	could I have tanned?
could you have tanned?
could he have tanned?
could we have tanned?
could you have tanned?
could they have tanned? 	could I have been tanning?
could you have been tanning?
could he have been tanning?
could we have been tanning?
could you have been tanning?
could they have been tanning? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not tan?
could you not tan?
could he not tan?
could we not tan?
could you not tan?
could they not tan? 	could I not be tanning?
could you not be tanning?
could he not be tanning?
could we not be tanning?
could you not be tanning?
could they not be tanning? 	could I not have tanned?
could you not have tanned?
could he not have tanned?
could we not have tanned?
could you not have tanned?
could they not have tanned? 	could I not have been tanning?
could you not have been tanning?
could he not have been tanning?
could we not have been tanning?
could you not have been tanning?
could they not have been tanning?