Chord/Tab song: Scary Mary

Very rough chords for Scary Mary by Biffy Clyro. They're probably mostly wrong, as this
is my first tab, but I got fed up with there being no chords for this song on the site.
Feel free to comment and correct these, or use them as a guideline to work out the
chords for yourself... or just ignore them if they're too bad :P
Listen to the song to work out the strumming pattern - it's fairly simple :)
Thanks! T.

Intro: C B6 C F Em F

[C]what must [B6]i h[C]ave beco[F]me
to des[Em]erve all the shit that you g[F]ave me?
the [C]rocks look like a [B6]bod[C]y in the [F]river
now [Em]i just wish that i [F]could sleep
( Tab from: http://www.guitartabs.cc/tabs/b/biffy_clyro/scary_mary_crd.html )
[Dm]to k[Em]eep me from [C]thinking
but the thoughts [B6]kee[C]p me up
its been [F]two months since you
[Dm]taught me not [Em]to tr[C]ust
but you kept [B6]you[C]r [F]promise

[Dm]you made[Em] patterns on my f[F]ace
[Dm]you painted pi[Em]ctures with my t[F]ears

[Dm]and you did it again
i knew that you wo[C]uld[D][Em][C]
[Dm]thank you for showing
me there's m[C]or[D]e[Em][C]

(Guitar bit, try chord progressions from previous verses)

[C]wash off your hands
its [B6]tim[C]e to let [F]go
release them
[C]give time to your heart
give t[B6]ime[C] to your so[F]ul
(end on C )
release them all

Sorry, I bet it's all wrong.