could vulcanise
Verbo regolare: vulcanise - vulcanised- vulcanised

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could vulcanise
you could vulcanise
he could vulcanise
we could vulcanise
you could vulcanise
they could vulcanise 	I could be vulcanising
you could be vulcanising
he could be vulcanising
we could be vulcanising
you could be vulcanising
they could be vulcanising	I could have vulcanised
you could have vulcanised
he could have vulcanised
we could have vulcanised
you could have vulcanised
they could have vulcanised	I could have been vulcanising
you could have been vulcanising
he could have been vulcanising
we could have been vulcanising
you could have been vulcanising
they could have been vulcanising	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't vulcanise
you couldn't vulcanise
he couldn't vulcanise
we couldn't vulcanise
you couldn't vulcanise
they couldn't vulcanise 	I couldn't be vulcanising
you couldn't be vulcanising
he couldn't be vulcanising
we couldn't be vulcanising
you couldn't be vulcanising
they couldn't be vulcanising	I couldn't have vulcanised
you couldn't have vulcanised
he couldn't have vulcanised
we couldn't have vulcanised
you couldn't have vulcanised
they couldn't have vulcanised	I couldn't have been vulcanising
you couldn't have been vulcanising
he couldn't have been vulcanising
we couldn't have been vulcanising
you couldn't have been vulcanising
they couldn't have been vulcanising	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I vulcanise?
could you vulcanise?
could he vulcanise?
could we vulcanise?
could you vulcanise?
could they vulcanise? 	could I be vulcanising?
could you be vulcanising?
could he be vulcanising?
could we be vulcanising?
could you be vulcanising?
could they be vulcanising? 	could I have vulcanised?
could you have vulcanised?
could he have vulcanised?
could we have vulcanised?
could you have vulcanised?
could they have vulcanised? 	could I have been vulcanising?
could you have been vulcanising?
could he have been vulcanising?
could we have been vulcanising?
could you have been vulcanising?
could they have been vulcanising? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I vulcanise?
couldn't you vulcanise?
couldn't he vulcanise?
couldn't we vulcanise?
couldn't you vulcanise?
couldn't they vulcanise? 	couldn't I be vulcanising?
couldn't you be vulcanising?
couldn't he be vulcanising?
couldn't we be vulcanising?
couldn't you be vulcanising?
couldn't they be vulcanising? 	couldn't I have vulcanised?
couldn't you have vulcanised?
couldn't he have vulcanised?
couldn't we have vulcanised?
couldn't you have vulcanised?
couldn't they have vulcanised? 	couldn't I have been vulcanising?
couldn't you have been vulcanising?
couldn't he have been vulcanising?
couldn't we have been vulcanising?
couldn't you have been vulcanising?
couldn't they have been vulcanising?