>>88752139All Monster has 3 base states
>Neutral, enraged, Tired.These can vary depending on monsters (Rajang) but they mostly cycle trough those 3. Beat his ass until he becomes enraged, then beat his ass harder to knock him out of their rage and they'll become tired (they drool and are visibly tired) until they go back to neutral.
Once you go through this cycle twice or thrice (depending on your weapons) they'll start limping, which means they are diying.
You can also wait out rage, but its better to just beat him to death since waiting out a rage might also rob you of its tired state
