could regionalise
Regular verb: regionalise - regionalised- regionalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could regionalise
you could regionalise
he could regionalise
we could regionalise
you could regionalise
they could regionalise 	I could be regionalising
you could be regionalising
he could be regionalising
we could be regionalising
you could be regionalising
they could be regionalising	I could have regionalised
you could have regionalised
he could have regionalised
we could have regionalised
you could have regionalised
they could have regionalised	I could have been regionalising
you could have been regionalising
he could have been regionalising
we could have been regionalising
you could have been regionalising
they could have been regionalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't regionalise
you couldn't regionalise
he couldn't regionalise
we couldn't regionalise
you couldn't regionalise
they couldn't regionalise 	I couldn't be regionalising
you couldn't be regionalising
he couldn't be regionalising
we couldn't be regionalising
you couldn't be regionalising
they couldn't be regionalising	I couldn't have regionalised
you couldn't have regionalised
he couldn't have regionalised
we couldn't have regionalised
you couldn't have regionalised
they couldn't have regionalised	I couldn't have been regionalising
you couldn't have been regionalising
he couldn't have been regionalising
we couldn't have been regionalising
you couldn't have been regionalising
they couldn't have been regionalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I regionalise?
could you regionalise?
could he regionalise?
could we regionalise?
could you regionalise?
could they regionalise? 	could I be regionalising?
could you be regionalising?
could he be regionalising?
could we be regionalising?
could you be regionalising?
could they be regionalising? 	could I have regionalised?
could you have regionalised?
could he have regionalised?
could we have regionalised?
could you have regionalised?
could they have regionalised? 	could I have been regionalising?
could you have been regionalising?
could he have been regionalising?
could we have been regionalising?
could you have been regionalising?
could they have been regionalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I regionalise?
couldn't you regionalise?
couldn't he regionalise?
couldn't we regionalise?
couldn't you regionalise?
couldn't they regionalise? 	couldn't I be regionalising?
couldn't you be regionalising?
couldn't he be regionalising?
couldn't we be regionalising?
couldn't you be regionalising?
couldn't they be regionalising? 	couldn't I have regionalised?
couldn't you have regionalised?
couldn't he have regionalised?
couldn't we have regionalised?
couldn't you have regionalised?
couldn't they have regionalised? 	couldn't I have been regionalising?
couldn't you have been regionalising?
couldn't he have been regionalising?
couldn't we have been regionalising?
couldn't you have been regionalising?
couldn't they have been regionalising?