could contextualise
Regular verb: contextualise - contextualised- contextualised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could contextualise
you could contextualise
she could contextualise
we could contextualise
you could contextualise
they could contextualise 	I could be contextualising
you could be contextualising
she could be contextualising
we could be contextualising
you could be contextualising
they could be contextualising	I could have contextualised
you could have contextualised
she could have contextualised
we could have contextualised
you could have contextualised
they could have contextualised	I could have been contextualising
you could have been contextualising
she could have been contextualising
we could have been contextualising
you could have been contextualising
they could have been contextualising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't contextualise
you couldn't contextualise
she couldn't contextualise
we couldn't contextualise
you couldn't contextualise
they couldn't contextualise 	I couldn't be contextualising
you couldn't be contextualising
she couldn't be contextualising
we couldn't be contextualising
you couldn't be contextualising
they couldn't be contextualising	I couldn't have contextualised
you couldn't have contextualised
she couldn't have contextualised
we couldn't have contextualised
you couldn't have contextualised
they couldn't have contextualised	I couldn't have been contextualising
you couldn't have been contextualising
she couldn't have been contextualising
we couldn't have been contextualising
you couldn't have been contextualising
they couldn't have been contextualising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I contextualise?
could you contextualise?
could she contextualise?
could we contextualise?
could you contextualise?
could they contextualise? 	could I be contextualising?
could you be contextualising?
could she be contextualising?
could we be contextualising?
could you be contextualising?
could they be contextualising? 	could I have contextualised?
could you have contextualised?
could she have contextualised?
could we have contextualised?
could you have contextualised?
could they have contextualised? 	could I have been contextualising?
could you have been contextualising?
could she have been contextualising?
could we have been contextualising?
could you have been contextualising?
could they have been contextualising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I contextualise?
couldn't you contextualise?
couldn't she contextualise?
couldn't we contextualise?
couldn't you contextualise?
couldn't they contextualise? 	couldn't I be contextualising?
couldn't you be contextualising?
couldn't she be contextualising?
couldn't we be contextualising?
couldn't you be contextualising?
couldn't they be contextualising? 	couldn't I have contextualised?
couldn't you have contextualised?
couldn't she have contextualised?
couldn't we have contextualised?
couldn't you have contextualised?
couldn't they have contextualised? 	couldn't I have been contextualising?
couldn't you have been contextualising?
couldn't she have been contextualising?
couldn't we have been contextualising?
couldn't you have been contextualising?
couldn't they have been contextualising?