"Olvasok egy könyvet" and "Olvasom a könyvet" both mean roughly "I read a/the book," and the verb "to read" shows up in each as a different word, "olvasok" in the first, "olvasom" in the second, despite naming the exact same action performed by the exact same person. Nothing about tense or person changed between the two sentences. What changed is whether the object being read is definite or indefinite, and Hungarian marks that distinction directly on the verb itself, a feature with no real equivalent in English, French, German, or the Romance languages.
The two conjugation patterns Hungarian verbs actually have
Hungarian transitive verbs conjugate along two separate paradigms: the indefinite conjugation, used when the direct object is unspecified, absent, or an indefinite noun ("olvasok" alone, or "olvasok egy könyvet," I read a book), and the definite conjugation, used when the direct object is a specific, identified noun or a third-person pronoun ("olvasom a könyvet," I read the book; "olvasom," I read it). The verb root stays recognizable across both forms, "olvas-" is visible in "olvasok" and "olvasom" alike, but the ending genuinely changes to reflect something about the object, not about the subject performing the action.
Why this is easy to miss in app courses
Because the indefinite conjugation looks close enough to a simpler, more general-purpose verb form, and because early lessons tend to favor indefinite objects (naming things generally rather than referring back to something specific), a learner can spend a long time only ever meeting the indefinite forms and reasonably assume that's simply how Hungarian conjugates, full stop. The definite conjugation tends to appear once lessons introduce definite articles and specific reference in the same breath, by which point the two paradigms can feel like an entirely separate, late-arriving grammar topic rather than the other half of something introduced from day one.
A worked example, the same verb both ways
"Keresek egy állást" (I'm looking for a job, indefinite: "egy állást," an unspecified job) uses the indefinite form "keresek." "Keresem az állásomat" (I'm looking for my job, definite: "az állásomat," my specific, already-referenced job) shifts to the definite form "keresem," even though the underlying verb, "keresni," to look for, and the subject, "I," haven't changed at all. A news sentence built the same way, "A rendőrség keresi a gyanúsítottat" (the police are looking for the suspect, a specific, already-identified suspect) versus a hypothetical "A rendőrség keres egy gyanúsítottat" (the police are looking for a suspect, an unspecified one, before anyone particular has been identified), uses the verb ending itself to signal whether the suspect is a known individual or still an open category, information an English sentence would have to carry entirely through the choice of "a" versus "the" on the object instead.
Third-person pronoun objects push the same choice further
The definite conjugation isn't limited to nouns with a definite article; it also applies when the object is an implied third-person pronoun rather than a spelled-out noun at all. "Látom" (I see it/him/her) is definite despite having no object noun in the sentence whatsoever, because Hungarian doesn't need a separate pronoun the way English needs "it" or "him," the object is folded directly into the verb ending instead. "Látok valakit" (I see someone) stays indefinite, since "valakit" (someone) is an unspecified, indefinite person. This means a definite-conjugated verb can be the only piece of a sentence carrying object information at all, which is worth knowing so a short sentence with an apparently missing object doesn't read as incomplete when the object was never going to appear as a separate word in the first place.
Possessed nouns count as definite too, even without "the"
A noun doesn't need a definite article to trigger the definite conjugation; a possessive suffix does the same job. "Olvasom a könyvemet" (I read my book) and even the shorter "olvasom a könyvét" (I read his/her book) both take the definite verb form, because a possessed noun, something belonging to a specific person, counts as definite in Hungarian's grammar regardless of whether the English translation would use "the," "my," or "his." This matters for news specifically, since institutional and possessive phrasing, "a bíróság az ítéletét" (the court its verdict, meaning the court's verdict), recurs constantly in legal and political reporting, and each of those possessed-object constructions pulls the definite conjugation along with it even when no definite article appears anywhere in the sentence.
Why this is a genuinely useful signal, not just a grammar rule
Once the definite ending is recognizable, it functions as an early, structural clue about what kind of object is coming, specific and already known to the reader, versus general and newly introduced, often before you've fully parsed the object noun phrase itself. In news writing specifically, where articles frequently return to a previously mentioned person, case, or document across several sentences, spotting a definite-conjugated verb is a reliable signal that the object is something the article already established, which helps you track a running reference across a paragraph the same way a pronoun would in English, except the signal arrives earlier, on the verb, rather than waiting for the object itself to appear.