could affirm
Regular verb: affirm - affirmed- affirmed

Affirmation 	
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I could affirm
you could affirm
she could affirm
we could affirm
you could affirm
they could affirm 	I could be affirming
you could be affirming
she could be affirming
we could be affirming
you could be affirming
they could be affirming	I could have affirmed
you could have affirmed
she 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
she 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 could not affirm
you could not affirm
she could not affirm
we could not affirm
you could not affirm
they could not affirm 	I could not be affirming
you could not be affirming
she could not be affirming
we could not be affirming
you could not be affirming
they could not be affirming	I could not have affirmed
you could not have affirmed
she could not have affirmed
we could not have affirmed
you could not have affirmed
they could not have affirmed	I could not have been affirming
you could not have been affirming
she could not have been affirming
we could not have been affirming
you could not have been affirming
they could not have been affirming	

Interrogative form 	
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could I affirm?
could you affirm?
could she affirm?
could we affirm?
could you affirm?
could they affirm? 	could I be affirming?
could you be affirming?
could she be affirming?
could we be affirming?
could you be affirming?
could they be affirming? 	could I have affirmed?
could you have affirmed?
could she 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 she 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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could I not affirm?
could you not affirm?
could she not affirm?
could we not affirm?
could you not affirm?
could they not affirm? 	could I not be affirming?
could you not be affirming?
could she not be affirming?
could we not be affirming?
could you not be affirming?
could they not be affirming? 	could I not have affirmed?
could you not have affirmed?
could she not have affirmed?
could we not have affirmed?
could you not have affirmed?
could they not have affirmed? 	could I not have been affirming?
could you not have been affirming?
could she not have been affirming?
could we not have been affirming?
could you not have been affirming?
could they not have been affirming?