Verbs which can never have an object are called INTRANSITIVE – examples include sleep, die, go, cry, laugh, fall. In these cases, the action of the verb doesn’t affect anyone, it just happens. E.g.,
- I sleep
- He cries
- We go
- It died
- They fell
In English some verbs can either take an object (e.g., she ate meat) or not (she ate), but in many languages, you couldn’t just say she ate, you would have to specify what she ate. So don’t assume that transitivity works the same way in the language you’re learning as it does in English.