Freddie writes with a very distinct style, he uses borrowed chords and extends phrases with bars of 2/4 as and when he wants or needs to for dramatic effect. 

The verses in this song are in C Mixolydian (C - B♭ - Am to Fm) where the Fm chord is a borrowed chord from C minor and it changes the tone, giving things a darker, more wistful feeling that he then resolves into the Chorus as it goes to C Major. 

John Deacon's line in this song is melodically and harmonically complementary but also uses some interesting runs to outline movement. Enjoy. 

This is John Deacon's song. No doubt about that.

A classic bassline (albeit one "influenced" but other songs from that era, it's got funk and swagger all over it and then you add in Roger's driving drums, Brian's Nile Rodgers inspired funk licks and Freddie's inimitable delivery and attitude and you can see why this song is so beloved. 

I've transcribed it with stacatto dotted 8th notes which has proven a bit controversial. My reason for doing this is the psychology of the note, the intent. It's longer than an 8th (hence the dot) but shorter than a stacatto quarter note. It has the chopped short weight of the quarter note and the clipped feel of an 8th note but feels kind of inbetween to me...