could renormalise
Regular verb: renormalise - renormalised- renormalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could renormalise
you could renormalise
he could renormalise
we could renormalise
you could renormalise
they could renormalise 	I could be renormalising
you could be renormalising
he could be renormalising
we could be renormalising
you could be renormalising
they could be renormalising	I could have renormalised
you could have renormalised
he could have renormalised
we could have renormalised
you could have renormalised
they could have renormalised	I could have been renormalising
you could have been renormalising
he could have been renormalising
we could have been renormalising
you could have been renormalising
they could have been renormalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't renormalise
you couldn't renormalise
he couldn't renormalise
we couldn't renormalise
you couldn't renormalise
they couldn't renormalise 	I couldn't be renormalising
you couldn't be renormalising
he couldn't be renormalising
we couldn't be renormalising
you couldn't be renormalising
they couldn't be renormalising	I couldn't have renormalised
you couldn't have renormalised
he couldn't have renormalised
we couldn't have renormalised
you couldn't have renormalised
they couldn't have renormalised	I couldn't have been renormalising
you couldn't have been renormalising
he couldn't have been renormalising
we couldn't have been renormalising
you couldn't have been renormalising
they couldn't have been renormalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I renormalise?
could you renormalise?
could he renormalise?
could we renormalise?
could you renormalise?
could they renormalise? 	could I be renormalising?
could you be renormalising?
could he be renormalising?
could we be renormalising?
could you be renormalising?
could they be renormalising? 	could I have renormalised?
could you have renormalised?
could he have renormalised?
could we have renormalised?
could you have renormalised?
could they have renormalised? 	could I have been renormalising?
could you have been renormalising?
could he have been renormalising?
could we have been renormalising?
could you have been renormalising?
could they have been renormalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I renormalise?
couldn't you renormalise?
couldn't he renormalise?
couldn't we renormalise?
couldn't you renormalise?
couldn't they renormalise? 	couldn't I be renormalising?
couldn't you be renormalising?
couldn't he be renormalising?
couldn't we be renormalising?
couldn't you be renormalising?
couldn't they be renormalising? 	couldn't I have renormalised?
couldn't you have renormalised?
couldn't he have renormalised?
couldn't we have renormalised?
couldn't you have renormalised?
couldn't they have renormalised? 	couldn't I have been renormalising?
couldn't you have been renormalising?
couldn't he have been renormalising?
couldn't we have been renormalising?
couldn't you have been renormalising?
couldn't they have been renormalising?