'Do' and 'does' are equally forms in the existing indefinite tense of your verb 'to carry out.' Which one particular you will use will primarily rely upon the sentence's matter. Their utilization is sort of equivalent, aside from one particular instance where You should use 'do' and never 'does.' https://financefeeds.com/unverified-reports-emerge-on-potential-u-s-seizure-of-ripple-s-xrp-escrow/