Translation guide
Expresses an extremely long or infinite duration, often with emotional emphasis. In Japanese, this is conveyed through set phrases, reduplication, or combining words for 'eternity' with emphasis markers.
To say that something will last for all time, with strong feeling (love, promises, etc.)
Literally 'until whenever', this is the most common and natural way to say 'forever' with emotional weight. Often used in promises, farewells, and expressions of lasting feelings.
I will love you forever and ever.
May this happiness last forever and ever.
Means 'eternally'. Slightly more formal or literary than いつまでも, but still common in songs, poems, and serious declarations.
Our friendship will last forever and ever.
To describe an action or state that goes on endlessly, often in a more literal or narrative sense.
Also used for ongoing, indefinite continuation. Can imply 'forever' in the sense of 'always' or 'endlessly'.
He kept talking forever and ever.
Means 'endlessly, on and on'. Often used for something that seems to go on too long, like a speech or a road.
The meeting went on forever and ever.
Means 'all the time, continuously'. When combined with いつまでも, it strengthens the meaning: いつまでもずっと (forever and ever).
To express that something will be passed down or remembered forever, often in a historical or cultural context.
Literally 'for a long time to come'. Commonly used in well-wishes for marriages, new businesses, or lasting prosperity.
I wish you both happiness forever and ever.
Means 'to be passed down eternally'. Used for legends, heroic deeds, or unforgettable events.
Do not translate 'forever and ever' word-for-word as 永遠と永遠 (eien to eien) or similar. Japanese uses set phrases like いつまでも or 永遠に to convey the same emphasis.
Incorrect literal translation
いつまでも is more colloquial and emotionally warm, often used in everyday promises and expressions of love. 永遠に is slightly more formal, abstract, or literary, and can sound more solemn or poetic.
They lived happily forever and ever.
The memory will remain forever and ever.
A Buddhist-derived term meaning 'for all eternity, into the infinite future'. Very emphatic and somewhat literary. Used in dramatic or solemn contexts.
This sin will not disappear forever and ever.
Let's be together forever and ever.
His achievements will be told forever and ever.