sheva hseva sehva eshva hesva ehsva shvea hsvea svhea vshea hvsea vhsea sevha esvha sveha vseha evsha vesha hevsa ehvsa hvesa vhesa evhsa vehsa sheav hseav sehav eshav hesav ehsav shaev hsaev sahev ashev hasev ahsev seahv esahv saehv asehv eashv aeshv heasv ehasv haesv ahesv eahsv aehsv shvae hsvae svhae vshae hvsae vhsae shave hsave sahve ashve hasve ahsve svahe vsahe savhe asvhe vashe avshe hvase vhase havse ahvse vahse avhse sevah esvah sveah vseah evsah vesah seavh esavh saevh asevh easvh aesvh svaeh vsaeh saveh asveh vaseh avseh evash veash eavsh aevsh vaesh avesh hevas ehvas hveas vheas evhas vehas heavs ehavs haevs ahevs eahvs aehvs hvaes vhaes haves ahves vahes avhes evahs veahs eavhs aevhs vaehs avehs
Note: these 'words' (valid or invalid) are all the permutations of the word sheva. These words are obtained by scrambling the letters in sheva.