could trivialise
Regular verb: trivialise - trivialised- trivialised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could trivialise
you could trivialise
he could trivialise
we could trivialise
you could trivialise
they could trivialise 	I could be trivialising
you could be trivialising
he could be trivialising
we could be trivialising
you could be trivialising
they could be trivialising	I could have trivialised
you could have trivialised
he could have trivialised
we could have trivialised
you could have trivialised
they could have trivialised	I could have been trivialising
you could have been trivialising
he could have been trivialising
we could have been trivialising
you could have been trivialising
they could have been trivialising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't trivialise
you couldn't trivialise
he couldn't trivialise
we couldn't trivialise
you couldn't trivialise
they couldn't trivialise 	I couldn't be trivialising
you couldn't be trivialising
he couldn't be trivialising
we couldn't be trivialising
you couldn't be trivialising
they couldn't be trivialising	I couldn't have trivialised
you couldn't have trivialised
he couldn't have trivialised
we couldn't have trivialised
you couldn't have trivialised
they couldn't have trivialised	I couldn't have been trivialising
you couldn't have been trivialising
he couldn't have been trivialising
we couldn't have been trivialising
you couldn't have been trivialising
they couldn't have been trivialising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I trivialise?
could you trivialise?
could he trivialise?
could we trivialise?
could you trivialise?
could they trivialise? 	could I be trivialising?
could you be trivialising?
could he be trivialising?
could we be trivialising?
could you be trivialising?
could they be trivialising? 	could I have trivialised?
could you have trivialised?
could he have trivialised?
could we have trivialised?
could you have trivialised?
could they have trivialised? 	could I have been trivialising?
could you have been trivialising?
could he have been trivialising?
could we have been trivialising?
could you have been trivialising?
could they have been trivialising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I trivialise?
couldn't you trivialise?
couldn't he trivialise?
couldn't we trivialise?
couldn't you trivialise?
couldn't they trivialise? 	couldn't I be trivialising?
couldn't you be trivialising?
couldn't he be trivialising?
couldn't we be trivialising?
couldn't you be trivialising?
couldn't they be trivialising? 	couldn't I have trivialised?
couldn't you have trivialised?
couldn't he have trivialised?
couldn't we have trivialised?
couldn't you have trivialised?
couldn't they have trivialised? 	couldn't I have been trivialising?
couldn't you have been trivialising?
couldn't he have been trivialising?
couldn't we have been trivialising?
couldn't you have been trivialising?
couldn't they have been trivialising?