Here's what rhymes with beforehand.

Consider these alternatives

rehearsed / first anyway / way knew / to knowing / going prepared / help communicated / dated notified / side notify / high understood / would never / ever aware / where sooner / tumor inform / form realised / realized hours / powers disclose / those wait / great notice / approaches guessed / best preparation / education specified / side specifying / dying waited / stated informing / morning forgot / not preparations / relations done / one