could obturate
Verbo regular: obturate - obturated- obturated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could obturate
you could obturate
he could obturate
we could obturate
you could obturate
they could obturate 	I could be obturating
you could be obturating
he could be obturating
we could be obturating
you could be obturating
they could be obturating	I could have obturated
you could have obturated
he could have obturated
we could have obturated
you could have obturated
they could have obturated	I could have been obturating
you could have been obturating
he could have been obturating
we could have been obturating
you could have been obturating
they could have been obturating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not obturate
you could not obturate
he could not obturate
we could not obturate
you could not obturate
they could not obturate 	I could not be obturating
you could not be obturating
he could not be obturating
we could not be obturating
you could not be obturating
they could not be obturating	I could not have obturated
you could not have obturated
he could not have obturated
we could not have obturated
you could not have obturated
they could not have obturated	I could not have been obturating
you could not have been obturating
he could not have been obturating
we could not have been obturating
you could not have been obturating
they could not have been obturating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I obturate?
could you obturate?
could he obturate?
could we obturate?
could you obturate?
could they obturate? 	could I be obturating?
could you be obturating?
could he be obturating?
could we be obturating?
could you be obturating?
could they be obturating? 	could I have obturated?
could you have obturated?
could he have obturated?
could we have obturated?
could you have obturated?
could they have obturated? 	could I have been obturating?
could you have been obturating?
could he have been obturating?
could we have been obturating?
could you have been obturating?
could they have been obturating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not obturate?
could you not obturate?
could he not obturate?
could we not obturate?
could you not obturate?
could they not obturate? 	could I not be obturating?
could you not be obturating?
could he not be obturating?
could we not be obturating?
could you not be obturating?
could they not be obturating? 	could I not have obturated?
could you not have obturated?
could he not have obturated?
could we not have obturated?
could you not have obturated?
could they not have obturated? 	could I not have been obturating?
could you not have been obturating?
could he not have been obturating?
could we not have been obturating?
could you not have been obturating?
could they not have been obturating?