could fluorinate
Regular verb: fluorinate - fluorinated- fluorinated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could fluorinate
you could fluorinate
he could fluorinate
we could fluorinate
you could fluorinate
they could fluorinate 	I could be fluorinating
you could be fluorinating
he could be fluorinating
we could be fluorinating
you could be fluorinating
they could be fluorinating	I could have fluorinated
you could have fluorinated
he could have fluorinated
we could have fluorinated
you could have fluorinated
they could have fluorinated	I could have been fluorinating
you could have been fluorinating
he could have been fluorinating
we could have been fluorinating
you could have been fluorinating
they could have been fluorinating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't fluorinate
you couldn't fluorinate
he couldn't fluorinate
we couldn't fluorinate
you couldn't fluorinate
they couldn't fluorinate 	I couldn't be fluorinating
you couldn't be fluorinating
he couldn't be fluorinating
we couldn't be fluorinating
you couldn't be fluorinating
they couldn't be fluorinating	I couldn't have fluorinated
you couldn't have fluorinated
he couldn't have fluorinated
we couldn't have fluorinated
you couldn't have fluorinated
they couldn't have fluorinated	I couldn't have been fluorinating
you couldn't have been fluorinating
he couldn't have been fluorinating
we couldn't have been fluorinating
you couldn't have been fluorinating
they couldn't have been fluorinating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I fluorinate?
could you fluorinate?
could he fluorinate?
could we fluorinate?
could you fluorinate?
could they fluorinate? 	could I be fluorinating?
could you be fluorinating?
could he be fluorinating?
could we be fluorinating?
could you be fluorinating?
could they be fluorinating? 	could I have fluorinated?
could you have fluorinated?
could he have fluorinated?
could we have fluorinated?
could you have fluorinated?
could they have fluorinated? 	could I have been fluorinating?
could you have been fluorinating?
could he have been fluorinating?
could we have been fluorinating?
could you have been fluorinating?
could they have been fluorinating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I fluorinate?
couldn't you fluorinate?
couldn't he fluorinate?
couldn't we fluorinate?
couldn't you fluorinate?
couldn't they fluorinate? 	couldn't I be fluorinating?
couldn't you be fluorinating?
couldn't he be fluorinating?
couldn't we be fluorinating?
couldn't you be fluorinating?
couldn't they be fluorinating? 	couldn't I have fluorinated?
couldn't you have fluorinated?
couldn't he have fluorinated?
couldn't we have fluorinated?
couldn't you have fluorinated?
couldn't they have fluorinated? 	couldn't I have been fluorinating?
couldn't you have been fluorinating?
couldn't he have been fluorinating?
couldn't we have been fluorinating?
couldn't you have been fluorinating?
couldn't they have been fluorinating?