In forō, ubī iūdicia fīerī solēbant, afflixerat nīdum suum hirundo: huius pullōs anguis laesit. Tum illa: Ō conditiōnem miseram, inquit, cum eō locō, ubī aliī iūs suum obtinent, mihi potissimum vīs et iniūria allāta fuit.
SOURCE: This comes from the Latin translation that accompanies Camerarius's edition of the Aesopic corpus; the 1571 edition of Camerarius's Aesop is available at GoogleBooks. This is fable 168 in Camerarius; for other versions, see Perry 227.
READ OUT LOUD. Choose which marked text you prefer to practice with - macrons (above) or accent marks (below) - and read the text out loud until you feel comfortable and confident. Then, try reading the unmarked text at the very bottom. It should be easy for you after practicing with the marked texts. :-)
ACCENT MARKS. Here is the text with accent marks, plus some color-coding for the words of three or more syllables (blue: penultimate stress; red: antepenultimate stress):
In foro, ubi iudícia fíeri solébant, afflíxerat nidum suum hirúndo: huius pullos anguis laesit. Tum illa: O conditiónem míseram, inquit, cum eo loco, ubi álii ius suum óbtinent, mihi potíssimum vis et iniúria alláta fuit.
UNMARKED TEXT. Here is the unmarked text - after practicing with the marked text that you prefer, you should not have any trouble with the unmarked text:
In foro,
ubi iudicia fieri solebant,
afflixerat nidum suum
hirundo:
huius pullos
anguis laesit.
Tum illa:
O conditionem miseram,
inquit,
cum eo loco,
ubi alii
ius suum obtinent,
mihi potissimum
vis et iniuria allata fuit.
IMAGE. Here is an illustration for the story (image source) showing a swallow:
