I have figured out this chords with the help of the bass line given in the site
http://inyourhouse.caixapreta.org/
(thanks Tiemi )
so I guess it's as simple as that:
(d for downstroke, u for upstroke)
d d d d u
and then
d d d d u d d d d u
and then again with the first measure, throughout all the song.
Obviously, I might be wrong, this is the first song I try to tab.
Pietro
http://imaginaryboys.altervista.org
https://lyrics.primoaccordo.net/cure/lost.htm