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What sentence mining is and why it works

Published on · Leer esta guía en español

Most of us have studied a language with vocabulary lists: a word on the left, its translation on the right. It works for a few days and then fades. Sentence mining starts from a different idea. Instead of memorising isolated words, you save whole sentences that you found yourself in a show, a video or a book, and you review them on a spaced schedule.

The name comes from the image of a mine: the content you consume is the rock, and the sentences worth keeping are the ore you take out.

What the process looks like

The method has three moments, and none of them is complicated:

  • You consume real content in the language you are learning: shows, videos, podcasts, articles.
  • When a sentence comes up that you almost understand, but that has one new word or structure, you save it as a card, ideally with its audio.
  • You review those cards for a few minutes a day with a spaced repetition system, which decides when each one is due again.

The second step is the one that matters. You do not save everything you hear, only what sits right at the edge of what you already know.

Why a sentence is worth more than a word

A word on its own does not tell you how it is used. “Get” can mean a dozen different things, and only context decides which. When you save “I didn’t get the joke”, you learn the meaning, the missing preposition, the word order and the tone all at once.

The sentence also comes with a memory: the scene, the character, the voice. Human memory leans on those associations. It is far easier to remember something that made you laugh in an episode than a dictionary entry.

There is a third reason: the sentences you pick are relevant to you. A textbook decides which vocabulary you need. When you mine, what you enjoy watching decides it.

What sentence mining is not

It is not a magic shortcut. The method does not replace hours of listening and reading; it makes better use of them. If you only review cards and never consume content, you end up with loose sentences and no ear for the language.

It is not collecting either. It is easy to get excited and save fifty sentences in one afternoon, but then you have to review all of them. A few well-chosen sentences a day beat a mountain you end up abandoning.

How to start today

Pick a show or a channel you already like and turn on subtitles in the language you are learning. Watch as usual. When a sentence catches your attention because you almost understand it, save it. Five to ten sentences a day is enough to notice a difference within a few weeks.

Galigo automates the tedious part: with the Chrome extension you capture the sentence, its translation and the audio straight from YouTube or Netflix, and the website schedules the reviews for you.