The middle voice. You know active voice and passive voice. Ancient Greek has a middle voice, where the subject does the action in a way that affects or benefits

The middle voice. You know active voice and passive voice. Ancient Greek has a middle voice, where the subject does the action in a way that affects or benefits themselves. (The exact meaning can vary for each verb.) In my opinion, this is a lot like the reflexive in French ("Je m'appelle"). I've also noticed that in English, we frequently use transitive verbs in an intransitive way to signify "middle voice": "I stop the car" is active and transitive, but "I stop" is intransitive with an implied "myself". In Greek that would be παύομαι. Once you know this pattern you see it everywhere. I wish someone would write a paper on it. :-) The subjunctive would be nice too. We have it, but it's pretty much disappeared. The future passive participle in Latin expresses need or wish, so donandum is "needing to be given". This is so useful I sometimes throw it into English sentences, like "We should highlight the bugs fixanda". Greek and Latin have so many ways of creating if/then sentences that play with tense and reality, it's amazing. Latin (I think Greek too?) has easy ways to signify whether you agree with or believe another speaker, when you're retelling what they said. In Chinese measure words are pretty fun. But Chinese was a long time ago for me. Also the use of tones is amazing.