Your sentence
Busco+a+mi+hermano.
Words in this sentence
buscar
to seek, search for, look for, try to find, to scour; to look up (in a search engine, dictionary, etc.); to fetch, get, pick up; to bring on (oneself), to ask for
Verb
a
to; by; at; Used before words referring to people, pets, or personified objects or places that function as direct objects: personal a.
Preposition