'Do' and 'does' are both of those forms from the existing indefinite tense on the verb 'to try and do.' Which 1 you'll use will largely depend on the sentence's issue. Their utilization is almost similar, apart from 1 occasion where You may use 'do' rather than 'does.' Blockchain https://financefeeds.com/fireblocks-integrates-lava-network-to-strengthen-multi-chain-infrastructure-and-uptime/