Translation:You do not eat rice.
I would be curious about that as well. Any native speakers perhaps who can help us out? :)
While I'm not sure about this particular example you mention, this source lists some 'markers' and other ways of expressing when an action occurs https://www.writtenchinese.com/past-present-future-tenses-mandarin-chinese/
To express that "ing" in english you would have to add a character that modifies the sentence meaning "在” ( Zai4） 你在吃饭/你不在吃饭.