Tuning is standard, no capo

This is a really pretty song I wanted to learn but no tabs were available. I'm just 
going to provide the chords, the rhythm is pretty straight forward if you listen to the 
song. This is my first tab so bear with me.

C    F    Some sort of B?     Am        G
0    0       0                0         3
1    1       0                1         3
0    2       1                2         0
2    3       0                2         0
3    3       2                0         2
X    X       X                x         3

So like I said the rhythm is pretty straight forward, the majority of the song 
alternates between the C and F.

In the middle of the verse he does a quick progression that goes C, B, and Am (He 
then strums the Am for a few seconds) and then Am, B, C.

The end of the verse is something like F, C, G, C.

Play around with it a little, hope this helped.