What is the diference? I have been / I had been What is the difference between this two expressions? Somebody could help me with this grammar doubt? Thanks!

Finally Friday! Good morning everyone! Finally has come the day that everybody having waiting for!!! Today we´ll have a traditional party here at work! (Actually the party happen all over the June´s month). The party is called "Festa Junina" (Something like June´s Parties) In this party everybody wear coutryside clothes and a lot of special food are served. Have a nice Friday everyone! Renato Norberto

A sad Wednesday! Hi everyone! Yesterday was a sad day here in Brazil. A famous singer and his girlfriend have died in a terrible car crash. They both were not using the seatbelt. They were sitting in the backseat, and unfortunately, here in Brazil many people do not use seatbelt in the backseat. I think now many people will rethinking this bad behavior! Take care people! Renato Norberto

The winter is coming! (GOT) Hi everyone! This week has started the winter season in Brazil, and here in São Paulo is too cold today for us who are not used with temperature below 15Cº! (59Fº) hahaha Gray sky, strong wind and light rain makes the situation even worse! In these days I´d like to stay in home only watching old movies on tv, but I can´t! Let´s work! See you! Renato Norberto

Weekly notes Hi! It´s my very first note here at Italki. My main goal here is to improve my conversation skill. My english level is upper intermediate (or lower hahah) and I´m studying with the AJ Hoge´s material (Effortless English). I like his method because is focused in listen, not in grammar. I´ll try to write something here every week. Feel free to correct me! Bye! Renato Norberto