could nasalise
Regular verb: nasalise - nasalised- nasalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could nasalise
you could nasalise
he could nasalise
we could nasalise
you could nasalise
they could nasalise 	I could be nasalising
you could be nasalising
he could be nasalising
we could be nasalising
you could be nasalising
they could be nasalising	I could have nasalised
you could have nasalised
he could have nasalised
we could have nasalised
you could have nasalised
they could have nasalised	I could have been nasalising
you could have been nasalising
he could have been nasalising
we could have been nasalising
you could have been nasalising
they could have been nasalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't nasalise
you couldn't nasalise
he couldn't nasalise
we couldn't nasalise
you couldn't nasalise
they couldn't nasalise 	I couldn't be nasalising
you couldn't be nasalising
he couldn't be nasalising
we couldn't be nasalising
you couldn't be nasalising
they couldn't be nasalising	I couldn't have nasalised
you couldn't have nasalised
he couldn't have nasalised
we couldn't have nasalised
you couldn't have nasalised
they couldn't have nasalised	I couldn't have been nasalising
you couldn't have been nasalising
he couldn't have been nasalising
we couldn't have been nasalising
you couldn't have been nasalising
they couldn't have been nasalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I nasalise?
could you nasalise?
could he nasalise?
could we nasalise?
could you nasalise?
could they nasalise? 	could I be nasalising?
could you be nasalising?
could he be nasalising?
could we be nasalising?
could you be nasalising?
could they be nasalising? 	could I have nasalised?
could you have nasalised?
could he have nasalised?
could we have nasalised?
could you have nasalised?
could they have nasalised? 	could I have been nasalising?
could you have been nasalising?
could he have been nasalising?
could we have been nasalising?
could you have been nasalising?
could they have been nasalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I nasalise?
couldn't you nasalise?
couldn't he nasalise?
couldn't we nasalise?
couldn't you nasalise?
couldn't they nasalise? 	couldn't I be nasalising?
couldn't you be nasalising?
couldn't he be nasalising?
couldn't we be nasalising?
couldn't you be nasalising?
couldn't they be nasalising? 	couldn't I have nasalised?
couldn't you have nasalised?
couldn't he have nasalised?
couldn't we have nasalised?
couldn't you have nasalised?
couldn't they have nasalised? 	couldn't I have been nasalising?
couldn't you have been nasalising?
couldn't he have been nasalising?
couldn't we have been nasalising?
couldn't you have been nasalising?
couldn't they have been nasalising?