You can start by understanding the panel layout. Usually, 4-koma manga has a simple and repetitive structure. Pay attention to the order of the panels and the expressions of the characters.
4 koma manga is a type of comic format that consists of four panels. It's usually simple and concise, often used for humor or slice-of-life stories. Different from other manga styles, it's more focused on short and punchy content.
Manga adaptations can vary. Sometimes they stick closely to the original, but often there are adjustments. It could be due to the need to fit a certain runtime, appeal to a broader audience, or because the creators have a different vision for the story.
Not all anime are based exactly on the manga. Sometimes, there are changes made for various reasons like creative decisions or to fit the animation format better.
The answer is no. There are a large number of light novels out there, and only a fraction of them get turned into manga. Some light novels might be too niche, or their content might not be suitable for the visual and often more mainstream - oriented manga format. Also, the process of adapting a light novel into a manga requires resources like artists, publishers willing to take the risk, etc., which means that not all light novels will end up as manga.