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I came across the phrase 心配いりません and from what I understand it means "Dont
worry". It is formed by using the する-verb 心配 (worry) and いる (to be needed).
What I don't understand is why there is no particle or something between 心配
and いる.

Does this mean that する-verbs don't necessarily require the verb する or one of
its related forms? Or am I just overthinking it and a particle just being
omitted?
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2018-10-02T01:45:02.423
61910
2018-10-02T04:52:53.273
2018-10-02T02:52:54.353
30339
question
grammar syntax particle-は particle-が ellipsis
Question about the phrase 心配いりません
心配いりません is the same as 心配 **は** いりません (literally "worry is not needed"), but は
is omitted. Here 心配 is a simple noun meaning "worry" or "anxiety". Suru-verbs
are essentially nouns followed by する ("to do"), so you can treat words like
心配, 運転 ("driving"), 勉強 ("studying") also as simple nouns.

Since 心配いりません is something people say very often, you can safely omit は even
in formal settings. Another similar set phrase is 問題ありません ("No problem"),
which is a short version of 問題 **は** ありません. Just like English speakers don't
usually bother to say " _There is_ no problem", this は is usually omitted for
brevity, too.
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2018-10-02T04:52:53.273
61913
2018-10-02T04:52:53.273
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answer