 Compare, within Indo-European itself, "*-s" second-person singular injunctive, "*-si" second-person singular present indicative, "*-tHa" second-person singular perfect, "*-te" second-person plural present indicative, "*tu" "you" (singular) nominative, "*tei" "to you" (singular) enclitic pronoun.These forms suggest that the underlying second-person marker in Indo-European may be "*t" and that the "*u" found in forms such as "*tu" was originally an affixal particle.Similarities have long been noted between the verb conjugation systems of Uralic languages (e.g.