Sheetmusic/Partitura (Alto Sax): & Soprano Sax): https://www.mymusicsheet.com/www.ismaeldorado Grammarcan indeed go out of style, but there does not seem to be much evidence that the phrase it must have been love is particularly connected to the 80s—other than the fact that it was the title of one very popular 80s song which was featured in a very popular movie from 1990, Pretty Woman.. Discussion. A well-known exaple of a grammatical construction going out of style is the decline of PressLike, Comment, Subscribe, Request A Song!!! :) Welove this beautiful Roxette song which was originally written as a Christmas song in 1987. The Lyrics were rewritten for the movie "Pretty Woman" and it Intro] Must have been love But it's over now [Verse 1] Lay a whisper on my pillow Leave the winter on the ground I wake up lonely This air of silence In the bedroom and all around (All around Providedto YouTube by WM SwedenIt Must Have Been Love (Live In Santiago) · RoxetteTourism℗ 1992 Parlophone Music Sweden AB, a Warner Music Group CompanyUnkn Nuestrarevision del clasico soft del soundtrack de Pretty Woman.Editado el 20 de mayo de 1990, grabado en Noviembre de 1987 del álbum "Pretty Woman Soundtra Itmust have been someone close to him. The thief must have had a key. The door was locked and nothing was broken. Oh, good! We've got milk. Mo must have bought some yesterday. might have / may have. We can use might have or may have + past participle when we think it's possible that something happened. I think I might have left the air Providedto YouTube by WM SwedenIt Must Have Been Love (Christmas for the Broken Hearted) · RoxettePearls Of Passion℗ 1987 Parlophone Music Sweden AB, a Warn Providedto YouTube by DaredoIt Must Have Been Love · Royal Philharmonic Orchestra London50 Summer Concert Classics: History of the Cinema Classics, played b 9Lf343R.