てからでないと - Grammar Discussion

Grammar Points
#1

(not) unless ~ cannot
(not) until ~ cannot

Structure

  • Verb[ て ] + からでないと + Negative Phrase
  • Verb[ て ] + からでなければ + Negative Phrase

Unless A is done, B can’t happen.

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#2

Would it be possible to get an explanation of how this grammar point differs from ないことには（～ない）? Thank you!

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#3

The individual components of this grammar structure make sense to me except 「から」.

What is the 「から」doing here?

#4

In てから, it means “after” (grammar point for てから).

So, roughly, “if it’s not after doing…”

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