The trick to this song is staying on top of the triplets when you're strumming. Some of the chords are transitions so listen for the changes. On the C-Cadd9 change, you just drop your pinky down right before the second G. Be careful towards the end of the song the chord progressions changes to include an Em I have chorded the whole song and it should be right. Enjoy. G C (CadD9) I believe submarines G C (Cadd9) D Underneath deep blue seas G C (Cadd9)D Saw the flags: Japanese G C (CaddD) No one will believe me Bridge Em D Ran back to the town bar and G I told the people how Em D I had seen the submarine and C Everyone laughed aloud GCCGDd9 GCCGDd9 G C (CadD9) I did spy periscopes G C (Cadd9) G D Dead of night on the eastern coast G C (Cadd9) GD The police made them jokes G C (Cadd9) D Told me I'd seen a ghost Em D G Everyone thinks I'm a liar No one knows the truth Em D C If it was a bigger fire I would be on the roof GC(EDdd9) GC(EDdd9) GC(GDdd9) GC(GDdd9) G C (Cadd9) Em D Ships will rust in Baldwin Bay (Let me go!) G C (Cadd9) Em D No one trusts what I say (I don't know!) G C (Cadd9) Em D Oh my God, no one paid (Attention!) G C (Cadd9) Em D Overnight my hair turned gray (Oh oh oh!) Em D G In the end it boils down to credibility Em D C I had none, so I will die with the secrets of the sea GC(EDdd9) GC(EDdd9) Then this chord progression for the rest of it with the rests. G C (Cadd9) G D (Submarine! Can't find me! Submarine!) Submarine... (Submarine!)