'Do' and 'does' are equally forms in the present indefinite tense of your verb 'to try and do.' Which one you'll use will mainly depend on the sentence's issue. Their usage is sort of identical, except for just one instance where You may use 'do' and not 'does.' The https://financefeeds.com/uk-regulated-xrp-mining-platform-launches-free-bitcoin-cloud-mining/