Preposition combinations in Galician grammar are essential for proper expression in the language. These combinations are formed by joining a preposition with another word, such as a verb, noun, or pronoun, to create a meaningful phrase in a sentence. In Galician, some common preposition combinations include “a favor de,” “en canto a,” “atรกs de,” and “por mor de.” Understanding and mastering these combinations is vital for achieving fluency in the language.