Digraphs/Trigraphs: sh, th, wh, ch, ng, qu, ck, ll, ss, zz, ff, oy, ow, oo, oi, ie, ai, ay, ee, ea, ey, oa, oe, oo, ue, ew, er, ir, ur, ar, or, au, aw, rr, wr, ed, ph, kn, ve, nn, tt, ow, bb, dd, pp, gg, se, ce, cc, ui mb, gn, ou, ge, eer, air, ear, ere, are, igh, oor, dge, ne, pe, ze, oul, i_e, o_e, u_e, a_e, e_e
