can tan
Verbo regular: tan - tanned- tanned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can tan
you can tan
she can tan
we can tan
you can tan
they can tan 	I can be tanning
you can be tanning
she can be tanning
we can be tanning
you can be tanning
they can be tanning	I can have tanned
you can have tanned
she can have tanned
we can have tanned
you can have tanned
they can have tanned	I can have been tanning
you can have been tanning
she can have been tanning
we can have been tanning
you can have been tanning
they can have been tanning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot tan
you cannot tan
she cannot tan
we cannot tan
you cannot tan
they cannot tan 	I cannot be tanning
you cannot be tanning
she cannot be tanning
we cannot be tanning
you cannot be tanning
they cannot be tanning	I cannot have tanned
you cannot have tanned
she cannot have tanned
we cannot have tanned
you cannot have tanned
they cannot have tanned	I cannot have been tanning
you cannot have been tanning
she cannot have been tanning
we cannot have been tanning
you cannot have been tanning
they cannot have been tanning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I tan?
can you tan?
can she tan?
can we tan?
can you tan?
can they tan? 	can I be tanning?
can you be tanning?
can she be tanning?
can we be tanning?
can you be tanning?
can they be tanning? 	can I have tanned?
can you have tanned?
can she have tanned?
can we have tanned?
can you have tanned?
can they have tanned? 	can I have been tanning?
can you have been tanning?
can she have been tanning?
can we have been tanning?
can you have been tanning?
can they have been tanning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not tan?
can you not tan?
can she not tan?
can we not tan?
can you not tan?
can they not tan? 	can I not be tanning?
can you not be tanning?
can she not be tanning?
can we not be tanning?
can you not be tanning?
can they not be tanning? 	can I not have tanned?
can you not have tanned?
can she not have tanned?
can we not have tanned?
can you not have tanned?
can they not have tanned? 	can I not have been tanning?
can you not have been tanning?
can she not have been tanning?
can we not have been tanning?
can you not have been tanning?
can they not have been tanning?