How to Use Transitive Verbs in Indo-European Languages

Even though you can have a strict word order that doesn't mean you can't move stuff around and it's worth putting thought into how you could shift the stuff around but still make it grammatical in a language. The simplest example for most people if they want to go look something like this up is Swahili. In a transitive verb both subject and direct object are cross-referenced on the verb. So long as the participants are not of the same class in theory you always know what's going on. Is there a way to disambiguate that? I'm sure there is but I don't speak Swahili so I mean I've not studied in in enough