With the disclaimer that I may have something wrong, here's the chord progression:
Chorus|: F major | Bb major :|F major | C major | Bb major[resolves with F major]Verses|: F major | F augmented | Bb major | C major :|F major | F major 7 | Bb major | G major
The song is in F major, but there are a couple accidentals in these chords (C# in F augmented and B natural in G major). Because these pitches venture outside of the song's key, there's something of a musical sense of the encompassing nature of the "all"s in the first verse ("Let me kiss away all your tears / And let me chase away all your fears / Baby, love me though all the years") and the "every" in the second verse ("When you're kissin' me, hold me tight / And when you're holding me, oh, baby, do it right / Oh, let me be with you, girl, every night"). This "every" is also sung with three syllables, an articulation that gives a sense of number.
I also noticed that "fears" (A G) in the line "And let me chase away all your fears" and "night" (A G F) in the line "Oh, let me be with you, girl, every night" are sung with melismas, giving a sense of entirety (for "all") and number (for "every").
