कर

In a sentence

• तुम अपना काम कर।

  You do your work.

  In this sentence, 'कर' is the imperative form of the verb 'to do' (करना), instructing someone to perform an action.

• योग अभ्यास कर रहे हो।

  You are practicing yoga.

  Here, 'कर' is a part of the present continuous tense form of the verb 'to do', combined with 'रहे हो', indicating an ongoing action.

• इसमें व्यवहार कर सकते हैं।

  You can engage in behavior.

  In this example, 'कर सकते हैं' is a modal form of the verb 'to do', suggesting the potential or ability to perform an action.