could bituminise
Verbo regular: bituminise - bituminised- bituminised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could bituminise
you could bituminise
he could bituminise
we could bituminise
you could bituminise
they could bituminise 	I could be bituminising
you could be bituminising
he could be bituminising
we could be bituminising
you could be bituminising
they could be bituminising	I could have bituminised
you could have bituminised
he could have bituminised
we could have bituminised
you could have bituminised
they could have bituminised	I could have been bituminising
you could have been bituminising
he could have been bituminising
we could have been bituminising
you could have been bituminising
they could have been bituminising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not bituminise
you could not bituminise
he could not bituminise
we could not bituminise
you could not bituminise
they could not bituminise 	I could not be bituminising
you could not be bituminising
he could not be bituminising
we could not be bituminising
you could not be bituminising
they could not be bituminising	I could not have bituminised
you could not have bituminised
he could not have bituminised
we could not have bituminised
you could not have bituminised
they could not have bituminised	I could not have been bituminising
you could not have been bituminising
he could not have been bituminising
we could not have been bituminising
you could not have been bituminising
they could not have been bituminising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I bituminise?
could you bituminise?
could he bituminise?
could we bituminise?
could you bituminise?
could they bituminise? 	could I be bituminising?
could you be bituminising?
could he be bituminising?
could we be bituminising?
could you be bituminising?
could they be bituminising? 	could I have bituminised?
could you have bituminised?
could he have bituminised?
could we have bituminised?
could you have bituminised?
could they have bituminised? 	could I have been bituminising?
could you have been bituminising?
could he have been bituminising?
could we have been bituminising?
could you have been bituminising?
could they have been bituminising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not bituminise?
could you not bituminise?
could he not bituminise?
could we not bituminise?
could you not bituminise?
could they not bituminise? 	could I not be bituminising?
could you not be bituminising?
could he not be bituminising?
could we not be bituminising?
could you not be bituminising?
could they not be bituminising? 	could I not have bituminised?
could you not have bituminised?
could he not have bituminised?
could we not have bituminised?
could you not have bituminised?
could they not have bituminised? 	could I not have been bituminising?
could you not have been bituminising?
could he not have been bituminising?
could we not have been bituminising?
could you not have been bituminising?
could they not have been bituminising?