The melody of A Thousand Years by Christina Perri runs 297 notes across 91 bars, 4:51 long in Eb at 68 beats per minute. The tab sits almost entirely in the first two frets, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? A Thousand Years chords and lyrics.