Bip39 passphrase recovery https://www.gamespot.com/profile/pothirpeib/ Though it makes use of BIP32 technique you can even now import BIP39 seeds into Electrum wallet. Also in addition to BIp32 There's BIP44 Model which some wallet use with the generation of seeds. For words that have only three letters, there is absolutely no 4th https://dirstop.com/story25595929/bip39-seed-phrase-generator-the-5-second-trick-for-bip39-mnemonic-code-converter-tool-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw