Ontologies have been becoming popular knowledge representation methods very particularly for the areas of semantic web and smart environments. This paper focuses on design of "User Behaviour Ontologies" in Ambient Intelligence (AmI) environment using ontology creation tool. Sensors are installed in the environment so that users' behaviour will be sensed and stored by the devices in that environment. The stored behaviour data will be refined and formed as a temporal sequence. Then the ontology will be constructed through mapping relations between behaviour and related temporal sequence. This work demonstrated the different ways of ontological representations. The advantage of this approach is that it makes the cognitive support easier to the teachers.