Tabbed by ear - Sounds fine to me.
Capo 2
Single strum through the verse.
Am
Our love was lost
F C
But now we've found it
Am
Our love was lost
F C
And hope was gone
[ Tab from: https://www.guitartabs.cc/tabs/t/the_temper_trap/love_lost_crd_ver_2.html ]
Am
Our love was lost
F C
But now we've found it
Am
And if you flash your heart
F C
I won't deny it
I promise
Am F C (Strumming)
I promise
That is basically it. It sounds like a 3 chord bash through most of it to me.
Try it for yourselves.
If you find anything better feel free to correct me.