could boomerang
Verbo regular: boomerang - boomeranged- boomeranged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could boomerang
you could boomerang
he could boomerang
we could boomerang
you could boomerang
they could boomerang 	I could be boomeranging
you could be boomeranging
he could be boomeranging
we could be boomeranging
you could be boomeranging
they could be boomeranging	I could have boomeranged
you could have boomeranged
he could have boomeranged
we could have boomeranged
you could have boomeranged
they could have boomeranged	I could have been boomeranging
you could have been boomeranging
he could have been boomeranging
we could have been boomeranging
you could have been boomeranging
they could have been boomeranging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not boomerang
you could not boomerang
he could not boomerang
we could not boomerang
you could not boomerang
they could not boomerang 	I could not be boomeranging
you could not be boomeranging
he could not be boomeranging
we could not be boomeranging
you could not be boomeranging
they could not be boomeranging	I could not have boomeranged
you could not have boomeranged
he could not have boomeranged
we could not have boomeranged
you could not have boomeranged
they could not have boomeranged	I could not have been boomeranging
you could not have been boomeranging
he could not have been boomeranging
we could not have been boomeranging
you could not have been boomeranging
they could not have been boomeranging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I boomerang?
could you boomerang?
could he boomerang?
could we boomerang?
could you boomerang?
could they boomerang? 	could I be boomeranging?
could you be boomeranging?
could he be boomeranging?
could we be boomeranging?
could you be boomeranging?
could they be boomeranging? 	could I have boomeranged?
could you have boomeranged?
could he have boomeranged?
could we have boomeranged?
could you have boomeranged?
could they have boomeranged? 	could I have been boomeranging?
could you have been boomeranging?
could he have been boomeranging?
could we have been boomeranging?
could you have been boomeranging?
could they have been boomeranging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not boomerang?
could you not boomerang?
could he not boomerang?
could we not boomerang?
could you not boomerang?
could they not boomerang? 	could I not be boomeranging?
could you not be boomeranging?
could he not be boomeranging?
could we not be boomeranging?
could you not be boomeranging?
could they not be boomeranging? 	could I not have boomeranged?
could you not have boomeranged?
could he not have boomeranged?
could we not have boomeranged?
could you not have boomeranged?
could they not have boomeranged? 	could I not have been boomeranging?
could you not have been boomeranging?
could he not have been boomeranging?
could we not have been boomeranging?
could you not have been boomeranging?
could they not have been boomeranging?