I did DUOLINGO for 800 days in a row
A Linguist explains how to make duolingo actually work
600 Days on Duolingo, Can I Talk to People?
How long does it ACTUALLY take to learn a language to fluency?
How Long Before Duolingo Works?
Do I only use Duolingo to learn English?
Duolingo #2059 Spanish - English (Part 14 - Talk About A Trip 2)
Don't use Duolingo to learn Arabic (WARNING!) | Arabic101
Can You Really Learn English With Duolingo?
Is Duolingo Effective?
Time It Takes To Learn Languages | Comparison
Would I use Duolingo to learn a new language?
How To Select English In Duolingo App (FAST & EASY!)
7 Step Study Plan - Duolingo English Test