could festoon
Verbo regular: festoon - festooned- festooned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could festoon
you could festoon
he could festoon
we could festoon
you could festoon
they could festoon 	I could be festooning
you could be festooning
he could be festooning
we could be festooning
you could be festooning
they could be festooning	I could have festooned
you could have festooned
he could have festooned
we could have festooned
you could have festooned
they could have festooned	I could have been festooning
you could have been festooning
he could have been festooning
we could have been festooning
you could have been festooning
they could have been festooning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not festoon
you could not festoon
he could not festoon
we could not festoon
you could not festoon
they could not festoon 	I could not be festooning
you could not be festooning
he could not be festooning
we could not be festooning
you could not be festooning
they could not be festooning	I could not have festooned
you could not have festooned
he could not have festooned
we could not have festooned
you could not have festooned
they could not have festooned	I could not have been festooning
you could not have been festooning
he could not have been festooning
we could not have been festooning
you could not have been festooning
they could not have been festooning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I festoon?
could you festoon?
could he festoon?
could we festoon?
could you festoon?
could they festoon? 	could I be festooning?
could you be festooning?
could he be festooning?
could we be festooning?
could you be festooning?
could they be festooning? 	could I have festooned?
could you have festooned?
could he have festooned?
could we have festooned?
could you have festooned?
could they have festooned? 	could I have been festooning?
could you have been festooning?
could he have been festooning?
could we have been festooning?
could you have been festooning?
could they have been festooning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not festoon?
could you not festoon?
could he not festoon?
could we not festoon?
could you not festoon?
could they not festoon? 	could I not be festooning?
could you not be festooning?
could he not be festooning?
could we not be festooning?
could you not be festooning?
could they not be festooning? 	could I not have festooned?
could you not have festooned?
could he not have festooned?
could we not have festooned?
could you not have festooned?
could they not have festooned? 	could I not have been festooning?
could you not have been festooning?
could he not have been festooning?
could we not have been festooning?
could you not have been festooning?
could they not have been festooning?