could decarbonate
Verbo regular: decarbonate - decarbonated- decarbonated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could decarbonate
you could decarbonate
he could decarbonate
we could decarbonate
you could decarbonate
they could decarbonate 	I could be decarbonating
you could be decarbonating
he could be decarbonating
we could be decarbonating
you could be decarbonating
they could be decarbonating	I could have decarbonated
you could have decarbonated
he could have decarbonated
we could have decarbonated
you could have decarbonated
they could have decarbonated	I could have been decarbonating
you could have been decarbonating
he could have been decarbonating
we could have been decarbonating
you could have been decarbonating
they could have been decarbonating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't decarbonate
you couldn't decarbonate
he couldn't decarbonate
we couldn't decarbonate
you couldn't decarbonate
they couldn't decarbonate 	I couldn't be decarbonating
you couldn't be decarbonating
he couldn't be decarbonating
we couldn't be decarbonating
you couldn't be decarbonating
they couldn't be decarbonating	I couldn't have decarbonated
you couldn't have decarbonated
he couldn't have decarbonated
we couldn't have decarbonated
you couldn't have decarbonated
they couldn't have decarbonated	I couldn't have been decarbonating
you couldn't have been decarbonating
he couldn't have been decarbonating
we couldn't have been decarbonating
you couldn't have been decarbonating
they couldn't have been decarbonating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I decarbonate?
could you decarbonate?
could he decarbonate?
could we decarbonate?
could you decarbonate?
could they decarbonate? 	could I be decarbonating?
could you be decarbonating?
could he be decarbonating?
could we be decarbonating?
could you be decarbonating?
could they be decarbonating? 	could I have decarbonated?
could you have decarbonated?
could he have decarbonated?
could we have decarbonated?
could you have decarbonated?
could they have decarbonated? 	could I have been decarbonating?
could you have been decarbonating?
could he have been decarbonating?
could we have been decarbonating?
could you have been decarbonating?
could they have been decarbonating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I decarbonate?
couldn't you decarbonate?
couldn't he decarbonate?
couldn't we decarbonate?
couldn't you decarbonate?
couldn't they decarbonate? 	couldn't I be decarbonating?
couldn't you be decarbonating?
couldn't he be decarbonating?
couldn't we be decarbonating?
couldn't you be decarbonating?
couldn't they be decarbonating? 	couldn't I have decarbonated?
couldn't you have decarbonated?
couldn't he have decarbonated?
couldn't we have decarbonated?
couldn't you have decarbonated?
couldn't they have decarbonated? 	couldn't I have been decarbonating?
couldn't you have been decarbonating?
couldn't he have been decarbonating?
couldn't we have been decarbonating?
couldn't you have been decarbonating?
couldn't they have been decarbonating?