знам

In a sentence

• Аз знам отговора на този въпрос.

  I know the answer to this question.

  Here, "знам" is used to express having knowledge or being aware of information.

• Знаеш ли кога ще пристигне влака?

  Do you know when the train will arrive?

  In this example, "знаеш" is a conjugation of "знам" used in a question to ask if someone has knowledge about a specific event.

• Колегата ми знае как да реши този проблем.

  My colleague knows how to solve this problem.

  The verb "знае", a third person singular conjugation of "знам", indicates someone possesses the skill or capability to perform an action.