Sentence mining means keeping a useful sentence from something you actually watched, then returning to it until the sound and meaning feel familiar. You do not need to collect every unknown word. One sentence you want to say yourself is a better starting point than a long list you never revisit.
Pick a video you can follow
Choose a short English talk or interview with reasonably clear speech. Start with a topic you care about and a clip where you understand most of the story. If every line requires a dictionary, choose an easier lesson. In browse English video lessons, you can try the first 30 sentences of a curated lesson without signing up or entering a card.
Mine one useful line
Listen once without reading. Then read the English line and its translation, replay the same sentence, and say it aloud. For example, “Today I want to tell you three stories from my life” is more useful as a complete thought than memorizing “story” alone. Tap an unfamiliar word to check its meaning and save it to your word book with the source sentence. Save only words that matter to the message.
Review with sound, not just text
On your next visit, open your saved words and try to recall what the speaker meant before reading the translation. Return to the video and replay the original line. Repeat after the speaker, then try saying the idea without looking. A five-minute cycle of listen → check → replay → review is easier to sustain than collecting dozens of cards in one sitting.
Know the limits before you start
LingoTube is built around English video lessons; it is not a tool for importing every video on the web. Playback also depends on YouTube availability and the video’s embedding permissions. The first 30 sentences of each curated lesson are free; the full lesson requires Pro. The print page offers the first 10 sentences free, while complete PDF handouts require Pro. See how LingoTube works for the full learning flow.
Try a short lesson: choose one sentence, replay it twice, and save one useful word.