could parameterise
Regular verb: parameterise - parameterised- parameterised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could parameterise
you could parameterise
she could parameterise
we could parameterise
you could parameterise
they could parameterise 	I could be parameterising
you could be parameterising
she could be parameterising
we could be parameterising
you could be parameterising
they could be parameterising	I could have parameterised
you could have parameterised
she could have parameterised
we could have parameterised
you could have parameterised
they could have parameterised	I could have been parameterising
you could have been parameterising
she could have been parameterising
we could have been parameterising
you could have been parameterising
they could have been parameterising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't parameterise
you couldn't parameterise
she couldn't parameterise
we couldn't parameterise
you couldn't parameterise
they couldn't parameterise 	I couldn't be parameterising
you couldn't be parameterising
she couldn't be parameterising
we couldn't be parameterising
you couldn't be parameterising
they couldn't be parameterising	I couldn't have parameterised
you couldn't have parameterised
she couldn't have parameterised
we couldn't have parameterised
you couldn't have parameterised
they couldn't have parameterised	I couldn't have been parameterising
you couldn't have been parameterising
she couldn't have been parameterising
we couldn't have been parameterising
you couldn't have been parameterising
they couldn't have been parameterising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I parameterise?
could you parameterise?
could she parameterise?
could we parameterise?
could you parameterise?
could they parameterise? 	could I be parameterising?
could you be parameterising?
could she be parameterising?
could we be parameterising?
could you be parameterising?
could they be parameterising? 	could I have parameterised?
could you have parameterised?
could she have parameterised?
could we have parameterised?
could you have parameterised?
could they have parameterised? 	could I have been parameterising?
could you have been parameterising?
could she have been parameterising?
could we have been parameterising?
could you have been parameterising?
could they have been parameterising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I parameterise?
couldn't you parameterise?
couldn't she parameterise?
couldn't we parameterise?
couldn't you parameterise?
couldn't they parameterise? 	couldn't I be parameterising?
couldn't you be parameterising?
couldn't she be parameterising?
couldn't we be parameterising?
couldn't you be parameterising?
couldn't they be parameterising? 	couldn't I have parameterised?
couldn't you have parameterised?
couldn't she have parameterised?
couldn't we have parameterised?
couldn't you have parameterised?
couldn't they have parameterised? 	couldn't I have been parameterising?
couldn't you have been parameterising?
couldn't she have been parameterising?
couldn't we have been parameterising?
couldn't you have been parameterising?
couldn't they have been parameterising?