The literal translation of « I love you » in Japanese is 愛してる (aishiteru). It is correct, and you will almost never hear it. In real life, a Japanese person in love says 好きです (suki desu) or 大好き (daisuki). Understanding why teaches you something fundamental about the language.
This is not about politeness levels. It is about weight. 愛してる does not dilute: the more it is repeated, the less it is worth. So Japanese speakers save it for the moments that deserve it.
段The three levels, lightest to heaviest
好きです · suki desu · I like you
Literally « I like ». This is the confession phrase, the one used at the start of a relationship, and it carries far more than the English translation suggests. Saying 好きです to someone is not saying you enjoy their company: it is asking them out.
あなたが好きです。
anata ga suki desu.
I like you. (a confession)
大好き · daisuki · I really love you
大 means « big », so 大好き is an intensified 好き: warm, affectionate, with none of the solemnity. It is probably the most common way to express love day to day, between partners and inside a family alike. You can also aim it at a food or a song.
ママ、大好き。
mama, daisuki.
I love you, Mum.
愛してる · aishiteru · I love you
The heavy one. 愛 is love in the full sense, the kind that commits. It belongs to a deep, lasting relationship, and plenty of Japanese couples say it rarely, or never. The polite form is 愛しています (aishite imasu).
Used too early or too often, it does not sound romantic. It sounds theatrical, like a line from a drama. That is the classic learner mistake, and it is instantly noticeable.
がThe grammar trap: が, not を
Here is the error that gives a beginner away, and it makes perfect sense coming from English. We say « I love someone », with an object. So we reach for を, the object particle.
Except 好き is not a verb: it is an adjective. It does not mean « to like », it means « to be pleasing ». The Japanese sentence literally says « as for me, you are pleasing ». The thing that pleases is the subject, and subjects take が.
あなたが好きです。 ○ correct
あなたを好きです。 ✗ avoid
That switch between は and が is one of the most disorienting parts of Japanese, and it reaches far beyond romance. We untangled it in は vs が: finally understand the difference.
The verb 愛する, on the other hand, is a real verb and does take を: あなたを愛しています.
告Confessing: the 告白
In Japan a relationship often starts with a specific moment called 告白 (kokuhaku), the confession. It is not simply admitting a feeling: it is an explicit request to start dating, and it expects a clear answer.
好きです。付き合ってください。
suki desu. tsukiatte kudasai.
I like you. Please go out with me.
It can sound blunt to Western ears, almost procedural. In practice it is reassuring: both people know exactly when the relationship began.
答How to answer
- 私も · watashi mo · me too
- 私も好きです · watashi mo suki desu · I like you too
- ありがとう · arigatō · thank you (a gentle way of not saying yes)
- ごめんなさい · gomen nasai · I am sorry (the polite no)
私も is enough and is used constantly. Japanese does not need to repeat the whole sentence.
他The words that orbit this one
- 会いたい · aitai · I miss you, literally « I want to see you »
- 恋人 · koibito · partner, the person you are with
- 彼氏 / 彼女 · kareshi / kanojo · boyfriend / girlfriend
- 付き合う · tsukiau · to date someone
- 一目惚れ · hitomebore · love at first sight, literally « falling in love at one look »
会いたい deserves a special mention. Japanese has no direct equivalent of « I miss you »: you say you want to see the person. It is more concrete, and once you get used to it, far more moving.
要Key points
- 好きです to confess, 大好き day to day, 愛してる for the rare, serious moments.
- 好き is an adjective: what pleases takes が, never を.
- 愛してる loses its force when repeated. Its rarity is the point.
- To answer, 私も is enough.