SWITCHBACKING

ab ag ah ai an as at aw ba bi ha hi in is it ka ki na sh si ta ti

abs act ags ahi ahs ain ais ait ani ant ash ask awn bag bah ban bas bat big bin bis bit cab can cat caw chi cig cis gab gan gas gat ghi gib gin git hag has hat haw hic hin his hit ich ick ink ins its kab kas kat khi kin kis kit nab nag nah naw nib nit nth sab sac sag sat saw sha sib sic sin sit ska ski tab tag tan tas taw tic tin tis tsk twa wab wag wan was wat wha wig win wis wit

acts agin ahis ains aits akin anis ankh anti ants asci awns bach back bags baht bait bang bani bank bans bash bask bast bath bats bias bigs bins bint bisk bits cabs cain cans cant cash cask cast cats caws chai chat chaw chia chic chin chis chit cigs cist gabs gain gait gash gast gats gawk ghat ghis gibs gink gins gist gits gnat gnaw hack hags haik hang hank hant hast hats hawk haws hick hins hint hisn hist hits hwan ibis ichs ikat inch inia inks inti isba itch iwis kabs kain kats khan khat khis kina king kins kist kith kits kiwi knit nabs nags nibs nick nigh nisi nits sack sain saki sang sank sati sawn scab scag scan scat shag shat shaw shin shit shwa sick sigh sign sika sing sinh sink sith skag skat skin skit snag snaw snib snit stab stag staw swab swag swan swat swig tabs tach tack tags tain tang tank tans task taws than thaw thin this tick tics tiki ting tins twas twig twin wabs wack wags wain wait wank wans want wash wast wats what whig whin whit wich wick wigs wing wink wins wish wist with wits