eternally russian

• ве́чно

  eternally, forever, everlastingly

  always, constantly, forever (in complaints)

• бесконе́чно

  endlessly, infinitely, without end

  extremely, infinitely

  eternally, endlessly, constantly

Examples

• Я буду вечно тебе благода́рен.

  I will be eternally grateful to you.

• Я буду вечно тебе благода́рна.

  I will be eternally grateful to you.

• Мне надоел ее вечно попрекающий тон.

  I’m tired of her eternally reproachful tone.

• Он превратился в вечно брюзжащего старика.

  He turned into an eternally grumbling old man.