TUTORISING

go in is it no nu oi on or os si so ti to un us ut

gin git gnu gor gos got gun gut ins ion its nit nog nor nos not nus nut ons ors ort our out rig rin rot rug run rut sin sir sit son sot sou sri sun tin tis tit tog ton tor tot tug tui tun tut uns urn uts

gins girn giro girt gist gits gnus gout grin grit grot guns gust guts inro inti into ions iris iron nisi nits nogs noir nori nous nuts onus orts ours oust outs rigs ring rins riot roti rots rout rugs ruin rung runs runt rust ruts sign sing snit snog snot snug song sori sorn sort sour stir stot stun suit sung ting tins tint tiro titi tits togs toit tong tons tori torn tors tort tost tots tour tout trig trio trog trot trug tugs tuis tung tuns turn tuts unit unto urns