Ebera sekalge: --- The young me asked : is an isolating language better than an inflected one? The present-days me answers : Not at all. The two are one. Syntax is always marked. In an inflected language, cases are marked by an affix. In an isolating language, cases are marked by a preposition. --- They aren't the same. In Sturnan, I have sentence grasai (modifiers that affect whole sentences). They come first in the sentence. The inflecting way to do this would be marking the verb (since one affecting the subject or object would not always have something to modify). I don't like that. It doesn't work the same. You would make entire sentences to be prepositional phrases. That never happens. --- As I know, case-marking applies to all human languages, at least on Earth. The only exception is lojban --- Case is often marked by word order alone. For instance, English's normal accusative is invisible. --- For the ease : what would make the learning of 10 affixes harder than the learning of 10 prepositions? --- Previous lingual experience. Not many languages (Eurolangs, at least) still have case systems. --- As you see, many (most?) prepositions of natlangs are unnecessary. In a conlang, you don't need to implement more prepositions for an isolating language than you would implement affixes for an inflected one. --- It is true that one adposition can represent more than one meaning. Your example was a cumbersome one, though. Almost all (even highly) inflecting languages have prepositions. A monster of inflection might have twenty or thirty cases. The Antienglish would have no more than a hundred or so. --- <skipping agglutination stuff> --- In my understanding, agglutination is the use of modular affixes. You can stack several affixes on the same word. Inflection would be using single affixes to give the same meaning. Dictionary.com's definition of agglutination is "The formation of words from morphemes that retain their original forms and meanings with little change during the combination process." If this definition differs from mine and is true, agglutination is a useless form of inflection, or else a method of deriving words. *shakes head incredulously* My language would be in category G (isolating / inflecting).