-ism bbbb bbbs bbdd bd-r bdii bdmi bdrm bdsd bdsm bibb bibi bibs bidi bidr bids biis bims birb bird biri birr birs bis- bisd biss bmdb bmir bmmi brdm brds brid brim bris brrm brrr brrs brsb brsr bsbd bsim bsms bsrd bsrm bssd bssm dbms dbrs dbss dddd ddss dibb dibs didi dids diii diis dimi dimm dims dird dirr dirs dis- disd disi diss dmds dmrb dmss drib drms drrs dsdm dsdr dsmb dsms dsri dsrr dssi ibbm ibid ibim ibis ibms ibrd ibri ibss idbm iddm idid idir idis idms idss iiii iiis iirs iisd iisi iism iisr imbi imdb imdi imds imid imir immi imms imri imrr imsi imsr imss irbm irds iri- irid iris irms irri irrs isbd isdb isds isim isis ismi isms isri issi issr isss mbbs mbdb mbim mbis mbms mbrs mddm mdds mdii mdis mdsd mibs mid- midi mids miii miis mim- mimd mimi mims mird miri mirr mirs mis- misd misi misr miss mmdb mmdi mmds mmii mmis mmmd mmmm mmms mmsd mrbb mrbm mrbs mrdd mrds mris mrmd mrsd mrsi msid msmb msmm msms msrb mssi mssm mssr rbbb rbbr rbbs rbds rbis rbms rbsd rbss rdbm rdms rib- ribs ridd ridi rids riis rimi rimm rims riri rirs risd risi rism riss rmbs rrrr rsbi rsdd rsds rsid rsis s-ib s-ii sbbs sbds sbsd sbsi sdds sdib sdms sdrs sdsm sdss sibi sibs sidd sidi sidr sids siim simd simi simm sims siri sirr sirs sisd sisi siss smdr smid smis smsd smss srib srim sris srsd ssbr ssdd ssdm ssid ssis ssri ssrm ssrs sssb sssi sssm ssss