This list of all two-letter combinations includes 1352 (2 × 26 2) of the possible 2704 (52 2) combinations of upper and lower case from the modern core Latin alphabet.A two-letter combination in bold means that the link links straight to a Wikipedia article (not a disambiguation page).. Kim and J.A .. Y l i e e e h p [ l h [ j m « h e e e \ ³ R \ ´ m i e e h \.