could exonerate
Regular verb: exonerate - exonerated- exonerated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could exonerate
you could exonerate
he could exonerate
we could exonerate
you could exonerate
they could exonerate 	I could be exonerating
you could be exonerating
he could be exonerating
we could be exonerating
you could be exonerating
they could be exonerating	I could have exonerated
you could have exonerated
he could have exonerated
we could have exonerated
you could have exonerated
they could have exonerated	I could have been exonerating
you could have been exonerating
he could have been exonerating
we could have been exonerating
you could have been exonerating
they could have been exonerating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't exonerate
you couldn't exonerate
he couldn't exonerate
we couldn't exonerate
you couldn't exonerate
they couldn't exonerate 	I couldn't be exonerating
you couldn't be exonerating
he couldn't be exonerating
we couldn't be exonerating
you couldn't be exonerating
they couldn't be exonerating	I couldn't have exonerated
you couldn't have exonerated
he couldn't have exonerated
we couldn't have exonerated
you couldn't have exonerated
they couldn't have exonerated	I couldn't have been exonerating
you couldn't have been exonerating
he couldn't have been exonerating
we couldn't have been exonerating
you couldn't have been exonerating
they couldn't have been exonerating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I exonerate?
could you exonerate?
could he exonerate?
could we exonerate?
could you exonerate?
could they exonerate? 	could I be exonerating?
could you be exonerating?
could he be exonerating?
could we be exonerating?
could you be exonerating?
could they be exonerating? 	could I have exonerated?
could you have exonerated?
could he have exonerated?
could we have exonerated?
could you have exonerated?
could they have exonerated? 	could I have been exonerating?
could you have been exonerating?
could he have been exonerating?
could we have been exonerating?
could you have been exonerating?
could they have been exonerating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I exonerate?
couldn't you exonerate?
couldn't he exonerate?
couldn't we exonerate?
couldn't you exonerate?
couldn't they exonerate? 	couldn't I be exonerating?
couldn't you be exonerating?
couldn't he be exonerating?
couldn't we be exonerating?
couldn't you be exonerating?
couldn't they be exonerating? 	couldn't I have exonerated?
couldn't you have exonerated?
couldn't he have exonerated?
couldn't we have exonerated?
couldn't you have exonerated?
couldn't they have exonerated? 	couldn't I have been exonerating?
couldn't you have been exonerating?
couldn't he have been exonerating?
couldn't we have been exonerating?
couldn't you have been exonerating?
couldn't they have been exonerating?