はもちろん (wa mochiron)
～はもちろん — “not to mention ～ / of course ～”
Pattern
-
名詞A＋はもちろん、名詞B＋もA of course, and B as well -
名詞A＋はもちろん（のこと）、…A is a given (also written Aはもちろんのこと)
Obvious first, then more
A is what everyone would expect; B is the surprising or wider addition. 英語はもちろん、フランス語も話せる: English is natural, and French too.
Connection and point of view
A is a noun (a verb needs の or こと). B usually has も or まで after it. The speaker stresses that the range reaches B as well, so both A and B are true.
Difference from だけでなく
～だけでなく～も is neutral. ～はもちろん treats A as too obvious to explain and so sounds more emphatic. Write it with the hiragana もちろん; it is the same word as the adverb “of course”.
Examples
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彼（かれ）は英語（えいご）はもちろん、フランス語（ご）も話（はな）せる。
Kare wa eigo wa mochiron, furansugo mo hanaseru.
He can speak French, not to mention English.
English is the given; French is the added surprise.
-
この公園（こうえん）は、子（こ）どもはもちろん、大人（おとな）にも人気（にんき）がある。
Kono kouen wa, kodomo wa mochiron, otona ni mo ninki ga aru.
This park is popular with adults, not to mention children.
-
週末（しゅうまつ）はもちろん、平日（へいじつ）もこの店（みせ）は混（こ）んでいる。
Shuumatsu wa mochiron, heijitsu mo kono mise wa konde iru.
This shop is crowded on weekdays too, not to mention weekends.
Common mistakes
- A should really be the obvious one. Putting the surprising item first sounds wrong.
- B normally needs も or まで. Dropping it makes the sentence feel unfinished.
More grammar points
- ばよかった ～ばよかった — I should have ～, if only I had ～
- ばかりで ～ばかりで — only ～ (and nothing else, with a negative feeling)
- ばかりでなく ～ばかりでなく — not only ～ but also ～
- だけでなく ～だけでなく — not only ～ but also ～
- だけど だけど — but, however (casual)
- ふりをする ～ふりをする — pretending to ～
- 一方（いっぽう）だ ～一方だ — keeps ～ing in one direction
- 一体（いったい） 一体 — what on earth ～ (emphasizing a question)
- じゃない ～じゃない — isn't it ～! (surprise or confirmation)
- か何（なに）か ～か何か — ～ or something
- 代（か）わりに ～代わりに — instead of ～, in return for ～
- 結局（けっきょく） 結局 — in the end, after all
- きり ～きり — only ～; ever since ～
- っけ ～っけ — was it ～? (recalling)
- ことになっている ～ことになっている — it is the rule or plan that ～
- ことは～が ～ことは～が — it is true that ～, but ～
- くせに ～くせに — even though ～ (with reproach)
- も～ば～も A も ～ば B も ～ — both A and B
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