In Classical Nahuatl, how to transform "(verb)" into "is being (verbed)"?
It's worth noting that classical taxonomy works a lot like this, but recursively.
>What is a man?
A large, tailless, bipedal primate.
>What is a primate?
A mammal with forward-facing eyes and opposable thumbs.
>What is a mammal?
A tetrapod that lactates to feed its young.
>What is a tetrapod?
A vertebrate with four limbs
>What is a vertebrate?
An animal with a spine.
>What is an animal?
A multicellular eukaryote that eats other living things
>What is an eukaryote?
An organism whose cells contain a nucleus.
I'm skipping a lot of taxa but you get the idea.