Topic summary
Adpositions
Extracted from the Wikipedia article Adposition.
Grammatical properties
Adpositions themselves are usually non-inflecting ("invariant"): they do not have paradigms of the form (such as tense, case, gender, etc.) the same way that verbs, adjectives, and nouns can. There are exceptions, though, such as prepositions that have fused with a pronominal object to form inflected prepositions.