جَاءَنِي رَجُلَانِ عَالِمَانِ — Two learned men came to me.
جَاءَ: singular past verb preceding an overt subject.
نِي: first-person object pronoun.
رَجُلَانِ: nominative dual subject, marked by alif.
عَالِمَانِ: nominative dual masculine adjective, also marked by alif.
The verb remains singular in the standard verb-first construction, while the subject and its adjective are dual.