may corroborate
Regular verb: corroborate - corroborated- corroborated

Affirmation 	
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I may corroborate
you may corroborate
she may corroborate
we may corroborate
you may corroborate
they may corroborate 	I may be corroborating
you may be corroborating
she may be corroborating
we may be corroborating
you may be corroborating
they may be corroborating	I may have corroborated
you may have corroborated
she may have corroborated
we may have corroborated
you may have corroborated
they may have corroborated	I may have been corroborating
you may have been corroborating
she may have been corroborating
we may have been corroborating
you may have been corroborating
they may have been corroborating	

Negation 	
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I may not corroborate
you may not corroborate
she may not corroborate
we may not corroborate
you may not corroborate
they may not corroborate 	I may not be corroborating
you may not be corroborating
she may not be corroborating
we may not be corroborating
you may not be corroborating
they may not be corroborating	I may not have corroborated
you may not have corroborated
she may not have corroborated
we may not have corroborated
you may not have corroborated
they may not have corroborated	I may not have been corroborating
you may not have been corroborating
she may not have been corroborating
we may not have been corroborating
you may not have been corroborating
they may not have been corroborating	

Interrogative form 	
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may I corroborate?
may you corroborate?
may she corroborate?
may we corroborate?
may you corroborate?
may they corroborate? 	may I be corroborating?
may you be corroborating?
may she be corroborating?
may we be corroborating?
may you be corroborating?
may they be corroborating? 	may I have corroborated?
may you have corroborated?
may she have corroborated?
may we have corroborated?
may you have corroborated?
may they have corroborated? 	may I have been corroborating?
may you have been corroborating?
may she have been corroborating?
may we have been corroborating?
may you have been corroborating?
may they have been corroborating? 	

Interro-negative form 	
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may I not corroborate?
may you not corroborate?
may she not corroborate?
may we not corroborate?
may you not corroborate?
may they not corroborate? 	may I not be corroborating?
may you not be corroborating?
may she not be corroborating?
may we not be corroborating?
may you not be corroborating?
may they not be corroborating? 	may I not have corroborated?
may you not have corroborated?
may she not have corroborated?
may we not have corroborated?
may you not have corroborated?
may they not have corroborated? 	may I not have been corroborating?
may you not have been corroborating?
may she not have been corroborating?
may we not have been corroborating?
may you not have been corroborating?
may they not have been corroborating?