could butylate
Verbo regolare: butylate - butylated- butylated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could butylate
you could butylate
he could butylate
we could butylate
you could butylate
they could butylate 	I could be butylating
you could be butylating
he could be butylating
we could be butylating
you could be butylating
they could be butylating	I could have butylated
you could have butylated
he could have butylated
we could have butylated
you could have butylated
they could have butylated	I could have been butylating
you could have been butylating
he could have been butylating
we could have been butylating
you could have been butylating
they could have been butylating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't butylate
you couldn't butylate
he couldn't butylate
we couldn't butylate
you couldn't butylate
they couldn't butylate 	I couldn't be butylating
you couldn't be butylating
he couldn't be butylating
we couldn't be butylating
you couldn't be butylating
they couldn't be butylating	I couldn't have butylated
you couldn't have butylated
he couldn't have butylated
we couldn't have butylated
you couldn't have butylated
they couldn't have butylated	I couldn't have been butylating
you couldn't have been butylating
he couldn't have been butylating
we couldn't have been butylating
you couldn't have been butylating
they couldn't have been butylating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I butylate?
could you butylate?
could he butylate?
could we butylate?
could you butylate?
could they butylate? 	could I be butylating?
could you be butylating?
could he be butylating?
could we be butylating?
could you be butylating?
could they be butylating? 	could I have butylated?
could you have butylated?
could he have butylated?
could we have butylated?
could you have butylated?
could they have butylated? 	could I have been butylating?
could you have been butylating?
could he have been butylating?
could we have been butylating?
could you have been butylating?
could they have been butylating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I butylate?
couldn't you butylate?
couldn't he butylate?
couldn't we butylate?
couldn't you butylate?
couldn't they butylate? 	couldn't I be butylating?
couldn't you be butylating?
couldn't he be butylating?
couldn't we be butylating?
couldn't you be butylating?
couldn't they be butylating? 	couldn't I have butylated?
couldn't you have butylated?
couldn't he have butylated?
couldn't we have butylated?
couldn't you have butylated?
couldn't they have butylated? 	couldn't I have been butylating?
couldn't you have been butylating?
couldn't he have been butylating?
couldn't we have been butylating?
couldn't you have been butylating?
couldn't they have been butylating?