croft rcoft corft ocrft rocft orcft crfot rcfot cfrot fcrot rfcot frcot cofrt ocfrt cfort fcort ofcrt focrt rofct orfct rfoct froct ofrct forct crotf rcotf cortf ocrtf roctf orctf crtof rctof ctrof tcrof rtcof trcof cotrf octrf ctorf tcorf otcrf tocrf rotcf ortcf rtocf trocf otrcf torcf crfto rcfto cfrto fcrto rfcto frcto crtfo rctfo ctrfo tcrfo rtcfo trcfo cftro fctro ctfro tcfro ftcro tfcro rftco frtco rtfco trfco ftrco tfrco coftr ocftr cfotr fcotr ofctr foctr cotfr octfr ctofr tcofr otcfr tocfr cftor fctor ctfor tcfor ftcor tfcor oftcr fotcr otfcr tofcr ftocr tfocr roftc orftc rfotc frotc ofrtc fortc rotfc ortfc rtofc trofc otrfc torfc rftoc frtoc rtfoc trfoc ftroc tfroc oftrc fotrc otfrc tofrc ftorc tforc
Note: these 'words' (valid or invalid) are all the permutations of the word croft. These words are obtained by scrambling the letters in croft.