could modernise
Verbo regular: modernise - modernised- modernised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could modernise
you could modernise
she could modernise
we could modernise
you could modernise
they could modernise 	I could be modernising
you could be modernising
she could be modernising
we could be modernising
you could be modernising
they could be modernising	I could have modernised
you could have modernised
she could have modernised
we could have modernised
you could have modernised
they could have modernised	I could have been modernising
you could have been modernising
she could have been modernising
we could have been modernising
you could have been modernising
they could have been modernising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't modernise
you couldn't modernise
she couldn't modernise
we couldn't modernise
you couldn't modernise
they couldn't modernise 	I couldn't be modernising
you couldn't be modernising
she couldn't be modernising
we couldn't be modernising
you couldn't be modernising
they couldn't be modernising	I couldn't have modernised
you couldn't have modernised
she couldn't have modernised
we couldn't have modernised
you couldn't have modernised
they couldn't have modernised	I couldn't have been modernising
you couldn't have been modernising
she couldn't have been modernising
we couldn't have been modernising
you couldn't have been modernising
they couldn't have been modernising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I modernise?
could you modernise?
could she modernise?
could we modernise?
could you modernise?
could they modernise? 	could I be modernising?
could you be modernising?
could she be modernising?
could we be modernising?
could you be modernising?
could they be modernising? 	could I have modernised?
could you have modernised?
could she have modernised?
could we have modernised?
could you have modernised?
could they have modernised? 	could I have been modernising?
could you have been modernising?
could she have been modernising?
could we have been modernising?
could you have been modernising?
could they have been modernising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I modernise?
couldn't you modernise?
couldn't she modernise?
couldn't we modernise?
couldn't you modernise?
couldn't they modernise? 	couldn't I be modernising?
couldn't you be modernising?
couldn't she be modernising?
couldn't we be modernising?
couldn't you be modernising?
couldn't they be modernising? 	couldn't I have modernised?
couldn't you have modernised?
couldn't she have modernised?
couldn't we have modernised?
couldn't you have modernised?
couldn't they have modernised? 	couldn't I have been modernising?
couldn't you have been modernising?
couldn't she have been modernising?
couldn't we have been modernising?
couldn't you have been modernising?
couldn't they have been modernising?