INTRATUBULAR

aa ab ai al an ar at ba bi in it la li na nu ta ti un ut

aal aba ail ain air ait ala alb alt ana ani ant arb art att baa bal ban bar bat bin bit bra brr bun bur but lab lar lat lib lin lit nab nib nil nit nub nut rai ran rat ria rib rin rub run rut tab tan tar tat tau til tin tit tub tui tun tut ulu urb urn uta

abri abut airn airt alan alar alba alit anal anil anta anti aria aril aunt aura baal bail bait bani barn batt bint birl birr bitt blat blin blur bran brat brin brit brut buna bunt bura burl burn burr butt lain lair lari lati latu liar lint lira litu luau luna lunt nail nala nurl raia rail rain rani rant rial ruin runt tabu tail tain tala tali tarn tart taut tilt tint tirl tuba tuna turn tutu ulan ulna unai unau unit