Wondering what a good example language is where, when you combine "prefixes" or "suffixes" to a base, it (a) changes the phonetic form of the word in certain places, and (b) this specific pattern only applies to a few instances of verbs, which means (c) that there are lots of patterns for verbs (or nouns or other word classes).
I'm not talking about orthography, in which case maybe French would be a good example candidate. I am specifically talking about phonetically, which could result in orthographic changes too.
The reason for asking is because in coming from a language like Spanish, you get the sense that all these verbs were constructed in advance with the goal of creating this "uniform" system or pattern that all verbs follow. There are 6 slots to fill in with different values. Then with nouns there are the two genders with
a in a lot of cases. In Spanish there are the
-ir verbs, with a few irregular ones here and there. But the pattern applies to a lot of verbs.
Currently, I am not too sure how natural this is, i.e. how often it would evolve into a system like this. The first grammar I looked at didn't follow this pattern and instead it was as if there were 50 different verb patterns that each applied to only 20 or so verbs max. That's what I mean by "lots of agglutination/fusion/inflection without a lot of regularity", there aren't really patterns that apply across broad swaths of word classes. Instead there are just many small patterns that apply to a few things, it seems because they are tailoring the phonology differently in each case, as one reason.