이제는

In a sentence

• 이제는 날씨가 따뜻해요.

  Now the weather is warm.

  '이제는' emphasizes the change from a preceding situation to the present state where the weather is warm.

• 이제는 새로운 친구들도 많이 생겼어요.

  I've made many new friends now.

  Here '이제는' highlights the transition to the current status of having made new friends.

• 이제는 그 일을 기억하지 않아요.

  Now I don’t remember that incident.

  '이제는' is used here to signify a moment of change, where the speaker no longer remembers the particular event.