 
 <translate> "If You Do n't Know Me by Now" is a song written by Kenny Gamble and Leon Huff, and recorded by the Philly soul musical group Harold Melvin & the Blue Notes. It became their first hit after being released as a single in 1972, topping the US R&B chart and peaking at number three on the US Pop chart.

Based on this passage, when did if you don't know me by now come out? Let's give stream of consciousness first: <ibo> "Ọ bụrụ na ị maghị m ugbu a" bụ abụ nke Kenny Gamble na Leon Huff dere, nke ndị otu egwu egwu Philly Harold Melvin & the Blue Notes dere. Ọ ghọrọ egwu mbụ ha mgbe a tọhapụrụ ya dị ka otu na 1972, na-ebute US R & B na-ebute ma na-ebute ọnụ ọgụgụ atọ na US Pop.  Dabere n'ihe a e kwuru ebe a, olee mgbe m pụtara n'ihu ọha ma ọ bụrụ na ị maghị m? Ka anyị buru ụzọ mee ka uche anyị dịrị n'ihe anyị na-eme: 