Translation guide
The English word "ever" has several distinct uses: in questions about experience, in negative statements meaning "never," in superlatives, in conditional "if ever" patterns, and in emphatic expressions. Japanese expresses these with different grammar patterns and words, not a single equivalent.
Asking if someone has had a certain experience at any point in their life up to now.
Attach to the past plain form of a verb to ask if someone has ever done something. This is the standard pattern for life experiences.
Have you ever been to Japan?
Have you ever eaten sushi?
Casual spoken version dropping が. Common in informal conversation.
Have you ever climbed Mt. Fuji?
Saying that something has not happened at any time.
Literally 'not even once', this strongly emphasizes 'never'. Place 一度も before a negative verb.
He has never been late.
I have never heard such a story.
Means 'not at all' and often translates to 'never' in context. More casual than 一度も〜ない.
She never drinks alcohol.
A formal/written adverb meaning 'never' or 'by no means'. Always used with a negative verb.
Emphasizing that something is the most extreme in all of history or one's experience.
Means 'the most ~ so far/ever'. 今まで means 'until now', で marks the scope, and 一番 means 'number one'.
This is the best ramen I've ever had.
I climbed the highest mountain I've ever climbed.
Literally 'the greatest in history'. Used for record-breaking achievements or historical extremes.
Means 'for the first time in my life'. Used for personal unprecedented experiences.
Expressing a rare or unlikely condition, often with emphasis.
Literally 'if there is a time when...'. A natural way to say 'if ever' or 'if by any chance'.
If you ever go to Japan, please contact me.
Means 'in the unlikely event that...'. Stronger emphasis on rarity than もし〜ことがあれば.
If I'm ever late, I'll call.
Expressing continuous duration from a point in the past until now, or for all time.
Means 'ever since ~'. Attach to a noun or verb phrase indicating a past point in time.
I haven't seen him ever since graduation.
Means 'eternally' or 'forever'. Used in poetic or emphatic contexts.
Love lasts forever.
Means 'forever' or 'for ever and ever'. Common in everyday speech.
Expressing surprise or disbelief that anyone would do something.
一体 adds emphasis to a question, like 'on earth' or 'ever'. Used for rhetorical or surprised questions.
Who ever said such a thing?
There is no single Japanese word that covers all uses of 'ever'. Using a dictionary translation like かつて or いつか in the wrong context will sound unnatural. Always identify the specific meaning first.
Have you ever been to Japan? (unnatural)
決して諦めない。
I will never give up.
I think it's the greatest movie ever.
I went abroad for the first time ever.
いつまでも友達でいよう。
Let's be friends forever.