جَلَسْتُ فِي السُّوقِ
Translation: I sat in the market.
جَلَسْتُ: past verb, subject “tu”.
فِي: preposition.
السُّوقِ: genitive noun.
فِي السُّوقِ: prepositional phrase associated with “jalastu”.
Another source example of an explicitly prepositional bounded location.