～てからでないと: "Can't do X until..."

Introduction

Until you read this intro, you can't start the lesson. And until you start this lesson, you won't be able to unlock the secret knowledge of ～てからでないと.

Why am I speaking like this? You'll see... you will see...

～てからでないと: Until I get my fill of banana bread, I won't be budging

構成こうせい

• 

  て form verb(て)からでないと～(ない)
  Example:
  → あのアイテムを取得しゅとくしてからでないと、パワーアップはできない。
  "You can't power up until you obtain that item.”

The ～てからでないと pattern might seem complex, but it is actually quite simple! It's a combination of a て form verb, the particle から (which in this case, acts as a theoretical "starting point"), でない (the は-less version of the negator 「ではない」), and finally, the conditional と.