-tree c-cor c-tec ccccc ccett cech ceche cecht ceco- ceere cefor ceoce ceoor cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe ceto- cette cfhof chech cheer cheet chefe cheff cheho chehr cheo chere chero chert chete cheth cheto chett chher choco choff choof choor chor- chore choro chort chote chott co-co cocc- cocce cocco coceo coche cocto coete cofer coffe cofre cohee cohoe cohoo cooch cooee cooer coore coote cooth corce core- coree corer corfe corfo coro- corot corre corte corto cotch coter cothe cott- cotte cotto crece creer creft creo- creot crete croce croco croft crooe croot crore crote croth crott ctree cttee eccho echte ecoff ectfe ecthr ecto- ector ectot eeeee eetch efere efetf effer effet efore efter ehret eocho eofor eorre erech erect erere eroor erore eroto error erte erter erthe etche etete ether etho- ethoc etoro etree etter feche fecht feeor feere fefor feher feoff ferce ferch feret ferr- ferre ferro ferte ferth fetch feteh feter feto- fetor fette focer foche focht foore foote force forch fore- foreh foreo foret forro forte forth forto fotch fotte freeh freer freet frere frett froot frore frote froth ftrtt h-cho hcooh he-he he-ro hecco heche hecht hect- hecte hecto heere heete hefer heffe hefte hehte heore herce heroe herre herro herte herth herto hetch heter hethe hette hetto hheth hhfce hhhhh ho-ho ho-oh hocco hoche hoeft hofer hofte hohoe hohot hooce hooch hooer hooft hoore hoort horce horch horhe horre horro horth horto hotch hothe hothr hotot hotte hotto hreoc hrere hroch hthrt htree o-fer ocftc ocher ochre ochro ocoee ocote ocree octet octo- octor oeco- oerth offer offof offre offto ofher ofoto ofter ofthe oh-oh ohchr ohfoo ohrot ohthe oo-er oocre ooher ooooh ooooo oothe orcet orech oreco oreo- orere orero orfeh orfeo orfoe orfor oroch oroco oroer orret orter ortet orth- orthe ortho ortoo otere otero other othre otoce ototo otter r-co- recce recco recet reche recht rect- recte recto reece reech reefe reeft reere reerh reeth refco refer refet reffe reffo rehco reher rehet rehoe rere- reree reret retch retee reter rethe retro rette retto rheo- rhett rhoeo ro-ro rocco roche rocht rocor roero roffe rofor rohff rooer roofe rooft roore roote rorer rotch roter rothe rotho roto- rotor rotot rotte rotto tecch teche techo teech teeth tefe tehee teoco terce terco teret teror terre terro tert- tetch teter tethe tetr- tetro tette thec- thect theef theer theft theo- theoc theof theor ther- there therf thero thete theth thoch thofe thoff thoft thore thoro thorr thort thoth thre- three thref threo thret throe throo throt to-ho tocco toche toco- toece toeof toerr toeto tofet toffo tofor tofte toher tohoe tohot toore tooth torce torch toreo toret torht torre torro torte torto toter tothe toto- totoe totoo totte treco treer treet trefe treff trere trete trett troch troco troee trofe troff troft troth trott ttttt