знаю

знаю

"I know."

Here, 'знаю' expresses knowing or being aware of a method or solution.

Я знаю, как решить эту задачу.

I know how to solve this problem.

In this sentence, 'знаю' is used to express being informed or aware of a future event.

Я знаю, что она придёт завтра.

I know that she will come tomorrow.

Here, 'знаю' is used to express acquaintance or familiarity with a person over a period of time.

Я знаю его очень давно.

I have known him for a very long time.