could free
Regular verb: free - freed- freed

Affirmation 	
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I could free
you could free
he could free
we could free
you could free
they could free 	I could be freeing
you could be freeing
he could be freeing
we could be freeing
you could be freeing
they could be freeing	I could have freed
you could have freed
he could have freed
we could have freed
you could have freed
they could have freed	I could have been freeing
you could have been freeing
he could have been freeing
we could have been freeing
you could have been freeing
they could have been freeing	

Negation 	
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I could not free
you could not free
he could not free
we could not free
you could not free
they could not free 	I could not be freeing
you could not be freeing
he could not be freeing
we could not be freeing
you could not be freeing
they could not be freeing	I could not have freed
you could not have freed
he could not have freed
we could not have freed
you could not have freed
they could not have freed	I could not have been freeing
you could not have been freeing
he could not have been freeing
we could not have been freeing
you could not have been freeing
they could not have been freeing	

Interrogative form 	
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could I free?
could you free?
could he free?
could we free?
could you free?
could they free? 	could I be freeing?
could you be freeing?
could he be freeing?
could we be freeing?
could you be freeing?
could they be freeing? 	could I have freed?
could you have freed?
could he have freed?
could we have freed?
could you have freed?
could they have freed? 	could I have been freeing?
could you have been freeing?
could he have been freeing?
could we have been freeing?
could you have been freeing?
could they have been freeing? 	

Interro-negative form 	
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could I not free?
could you not free?
could he not free?
could we not free?
could you not free?
could they not free? 	could I not be freeing?
could you not be freeing?
could he not be freeing?
could we not be freeing?
could you not be freeing?
could they not be freeing? 	could I not have freed?
could you not have freed?
could he not have freed?
could we not have freed?
could you not have freed?
could they not have freed? 	could I not have been freeing?
could you not have been freeing?
could he not have been freeing?
could we not have been freeing?
could you not have been freeing?
could they not have been freeing?