Click Learning Language. This is on the right side of your screen, under "Account". Click Reset or remove languages. This is in the middle of your screen under "See all language courses". A page will load that shows all the languages you are learning. Click Remove next to the language you want to delete.
What happens when you add a language that you have removed?
Adding a language that you have removed will restart the learning process. You will not resume where you left off.
How to delete an app from the trash bin?
This depends on your exact device, but usually this will be by long-pressing the app icon and then either pressing an 'x' in the top right corner (iOS) or dragging it to either a trash bin icon or a bar saying "delete" (Android).
Where is learning language on my profile?
On the right , below your profile picture select "Learning language".
How many courses are required for a base language?
Every base language must have at least a course. To remove or delete a course its base language must have currently at least two courses.