could affirm
Regular verb: affirm - affirmed- affirmed

Affirmation 	
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I could affirm
you could affirm
he could affirm
we could affirm
you could affirm
they could affirm 	I could be affirming
you could be affirming
he could be affirming
we could be affirming
you could be affirming
they could be affirming	I could have affirmed
you could have affirmed
he could have affirmed
we could have affirmed
you could have affirmed
they could have affirmed	I could have been affirming
you could have been affirming
he could have been affirming
we could have been affirming
you could have been affirming
they could have been affirming	

Negation 	
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I couldn't affirm
you couldn't affirm
he couldn't affirm
we couldn't affirm
you couldn't affirm
they couldn't affirm 	I couldn't be affirming
you couldn't be affirming
he couldn't be affirming
we couldn't be affirming
you couldn't be affirming
they couldn't be affirming	I couldn't have affirmed
you couldn't have affirmed
he couldn't have affirmed
we couldn't have affirmed
you couldn't have affirmed
they couldn't have affirmed	I couldn't have been affirming
you couldn't have been affirming
he couldn't have been affirming
we couldn't have been affirming
you couldn't have been affirming
they couldn't have been affirming	

Interrogative form 	
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could I affirm?
could you affirm?
could he affirm?
could we affirm?
could you affirm?
could they affirm? 	could I be affirming?
could you be affirming?
could he be affirming?
could we be affirming?
could you be affirming?
could they be affirming? 	could I have affirmed?
could you have affirmed?
could he have affirmed?
could we have affirmed?
could you have affirmed?
could they have affirmed? 	could I have been affirming?
could you have been affirming?
could he have been affirming?
could we have been affirming?
could you have been affirming?
could they have been affirming? 	

Interro-negative form 	
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couldn't I affirm?
couldn't you affirm?
couldn't he affirm?
couldn't we affirm?
couldn't you affirm?
couldn't they affirm? 	couldn't I be affirming?
couldn't you be affirming?
couldn't he be affirming?
couldn't we be affirming?
couldn't you be affirming?
couldn't they be affirming? 	couldn't I have affirmed?
couldn't you have affirmed?
couldn't he have affirmed?
couldn't we have affirmed?
couldn't you have affirmed?
couldn't they have affirmed? 	couldn't I have been affirming?
couldn't you have been affirming?
couldn't he have been affirming?
couldn't we have been affirming?
couldn't you have been affirming?
couldn't they have been affirming?