could copyright
Verbo regular: copyright - copyrighted- copyrighted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could copyright
you could copyright
he could copyright
we could copyright
you could copyright
they could copyright 	I could be copyrighting
you could be copyrighting
he could be copyrighting
we could be copyrighting
you could be copyrighting
they could be copyrighting	I could have copyrighted
you could have copyrighted
he could have copyrighted
we could have copyrighted
you could have copyrighted
they could have copyrighted	I could have been copyrighting
you could have been copyrighting
he could have been copyrighting
we could have been copyrighting
you could have been copyrighting
they could have been copyrighting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't copyright
you couldn't copyright
he couldn't copyright
we couldn't copyright
you couldn't copyright
they couldn't copyright 	I couldn't be copyrighting
you couldn't be copyrighting
he couldn't be copyrighting
we couldn't be copyrighting
you couldn't be copyrighting
they couldn't be copyrighting	I couldn't have copyrighted
you couldn't have copyrighted
he couldn't have copyrighted
we couldn't have copyrighted
you couldn't have copyrighted
they couldn't have copyrighted	I couldn't have been copyrighting
you couldn't have been copyrighting
he couldn't have been copyrighting
we couldn't have been copyrighting
you couldn't have been copyrighting
they couldn't have been copyrighting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I copyright?
could you copyright?
could he copyright?
could we copyright?
could you copyright?
could they copyright? 	could I be copyrighting?
could you be copyrighting?
could he be copyrighting?
could we be copyrighting?
could you be copyrighting?
could they be copyrighting? 	could I have copyrighted?
could you have copyrighted?
could he have copyrighted?
could we have copyrighted?
could you have copyrighted?
could they have copyrighted? 	could I have been copyrighting?
could you have been copyrighting?
could he have been copyrighting?
could we have been copyrighting?
could you have been copyrighting?
could they have been copyrighting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I copyright?
couldn't you copyright?
couldn't he copyright?
couldn't we copyright?
couldn't you copyright?
couldn't they copyright? 	couldn't I be copyrighting?
couldn't you be copyrighting?
couldn't he be copyrighting?
couldn't we be copyrighting?
couldn't you be copyrighting?
couldn't they be copyrighting? 	couldn't I have copyrighted?
couldn't you have copyrighted?
couldn't he have copyrighted?
couldn't we have copyrighted?
couldn't you have copyrighted?
couldn't they have copyrighted? 	couldn't I have been copyrighting?
couldn't you have been copyrighting?
couldn't he have been copyrighting?
couldn't we have been copyrighting?
couldn't you have been copyrighting?
couldn't they have been copyrighting?