could mineralise
Regular verb: mineralise - mineralised- mineralised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mineralise
you could mineralise
he could mineralise
we could mineralise
you could mineralise
they could mineralise 	I could be mineralising
you could be mineralising
he could be mineralising
we could be mineralising
you could be mineralising
they could be mineralising	I could have mineralised
you could have mineralised
he could have mineralised
we could have mineralised
you could have mineralised
they could have mineralised	I could have been mineralising
you could have been mineralising
he could have been mineralising
we could have been mineralising
you could have been mineralising
they could have been mineralising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't mineralise
you couldn't mineralise
he couldn't mineralise
we couldn't mineralise
you couldn't mineralise
they couldn't mineralise 	I couldn't be mineralising
you couldn't be mineralising
he couldn't be mineralising
we couldn't be mineralising
you couldn't be mineralising
they couldn't be mineralising	I couldn't have mineralised
you couldn't have mineralised
he couldn't have mineralised
we couldn't have mineralised
you couldn't have mineralised
they couldn't have mineralised	I couldn't have been mineralising
you couldn't have been mineralising
he couldn't have been mineralising
we couldn't have been mineralising
you couldn't have been mineralising
they couldn't have been mineralising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mineralise?
could you mineralise?
could he mineralise?
could we mineralise?
could you mineralise?
could they mineralise? 	could I be mineralising?
could you be mineralising?
could he be mineralising?
could we be mineralising?
could you be mineralising?
could they be mineralising? 	could I have mineralised?
could you have mineralised?
could he have mineralised?
could we have mineralised?
could you have mineralised?
could they have mineralised? 	could I have been mineralising?
could you have been mineralising?
could he have been mineralising?
could we have been mineralising?
could you have been mineralising?
could they have been mineralising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mineralise?
couldn't you mineralise?
couldn't he mineralise?
couldn't we mineralise?
couldn't you mineralise?
couldn't they mineralise? 	couldn't I be mineralising?
couldn't you be mineralising?
couldn't he be mineralising?
couldn't we be mineralising?
couldn't you be mineralising?
couldn't they be mineralising? 	couldn't I have mineralised?
couldn't you have mineralised?
couldn't he have mineralised?
couldn't we have mineralised?
couldn't you have mineralised?
couldn't they have mineralised? 	couldn't I have been mineralising?
couldn't you have been mineralising?
couldn't he have been mineralising?
couldn't we have been mineralising?
couldn't you have been mineralising?
couldn't they have been mineralising?