behave
The German word 'sich verhalten' is the equivalent of the English verb 'to behave'. It is used to describe how someone acts or conducts themselves in a certain situation. It can be used in both a positive and negative context, depending on the behavior being described.
She has to behave herself.
In this sentence, 'sich verhalten' is used to indicate the action that 'she' needs to take. The reflexive nature of 'sich' highlights that the behaviour is self-directed or done by oneself.
He knows how he should behave.
This phrase uses 'sich verhalten' to describe 'his' knowledge about his own expected behaviour. 'Soll' expresses an obligation or expectation.
We cannot predict how they will behave.
In this example, 'sich verhalten' is being used to describe future behaviour that 'we' are unsure of. The phrase 'Wir können nicht vorhersagen' indicates the inability to predict the behaviour.