N'ahịrịokwu "Ha na-egwu egwu n'ụlọ," okwu n'ụlọ na-egosi ebe omume ahụ na-eme. Okwu a sitere na mkpọaha na (nke pụtara "n'ime" ma ọ bụ "na") na aha ụlọ.
N'ụtọasụsụ Igbo, na bụ mkpọaha (preposition), nke e ji egosi ebe, oge, ma ọ bụ ụzọ. Mgbe mkpọaha jikọtara na aha (dị ka na + ụlọ = n'ụlọ), ọ na-emepụta okwu ndenye (prepositional phrase), nke na-akọwa ebe ma ọ bụ ọnọdụ omume.
N'ụlọ bụ okwu ndenye n'ihi na ọ bụ ụdị okwu nke mkpọaha na na-eduga, na-egosi ebe ha na-egwu egwu. Ọ bụghị okwu ngbanwe (adverb), ihe omume (verb/action), ma ọ bụ aha (noun) naanị ya.
