connective N1 uncommon casualwritten

〜ではあるまいし — it's not as if ~

〜ではあるまいし ・ ではあるまいし

Meaning

Key sentence

You're not a child, so do that much yourself.

Formation

Attaches toFormExample
Noun or plain form N/普通形 + ではあるまいし

When: Spoken-emphatic; the second clause is typically advice or criticism ('so [do/don't] ~').

Examples

I'm not a god — there's no way I could know the future.
It's not as if it's your first time, so you don't need to be so nervous.

Easily confused with

See 〜ではあるまいし in real sentences

Jengo shows 〜ではあるまいし the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.

Study it in Jengo

Sources Compiled from published Japanese grammar references.

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