could fin
Regular verb: fin - fined- fined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could fin
you could fin
he could fin
we could fin
you could fin
they could fin 	I could be fining
you could be fining
he could be fining
we could be fining
you could be fining
they could be fining	I could have fined
you could have fined
he could have fined
we could have fined
you could have fined
they could have fined	I could have been fining
you could have been fining
he could have been fining
we could have been fining
you could have been fining
they could have been fining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't fin
you couldn't fin
he couldn't fin
we couldn't fin
you couldn't fin
they couldn't fin 	I couldn't be fining
you couldn't be fining
he couldn't be fining
we couldn't be fining
you couldn't be fining
they couldn't be fining	I couldn't have fined
you couldn't have fined
he couldn't have fined
we couldn't have fined
you couldn't have fined
they couldn't have fined	I couldn't have been fining
you couldn't have been fining
he couldn't have been fining
we couldn't have been fining
you couldn't have been fining
they couldn't have been fining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I fin?
could you fin?
could he fin?
could we fin?
could you fin?
could they fin? 	could I be fining?
could you be fining?
could he be fining?
could we be fining?
could you be fining?
could they be fining? 	could I have fined?
could you have fined?
could he have fined?
could we have fined?
could you have fined?
could they have fined? 	could I have been fining?
could you have been fining?
could he have been fining?
could we have been fining?
could you have been fining?
could they have been fining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I fin?
couldn't you fin?
couldn't he fin?
couldn't we fin?
couldn't you fin?
couldn't they fin? 	couldn't I be fining?
couldn't you be fining?
couldn't he be fining?
couldn't we be fining?
couldn't you be fining?
couldn't they be fining? 	couldn't I have fined?
couldn't you have fined?
couldn't he have fined?
couldn't we have fined?
couldn't you have fined?
couldn't they have fined? 	couldn't I have been fining?
couldn't you have been fining?
couldn't he have been fining?
couldn't we have been fining?
couldn't you have been fining?
couldn't they have been fining?