っては replaced with っちゃ？

Question

My friend said:

うたっちゃだめだから。

Is the っちゃ a colloquial replacement for っては　in this case?

l'électeur · Accepted Answer · 2018-12-23 14:46:00Z

5

Precisely.

In meaning,

「ては」＝「ちゃ」, 「ちゃあ」.

Thus,

「うたっちゃだめだから。」

means:

"You shouldn't sing (it/this song/here/now, etc)."

answered Jan 2 '17 at 9:53

l'électeur

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Ah I see. Thank you. So for example could you say?: すっかり食べ終わっちゃいない – Tyler H Jan 2 '17 at 18:06

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