It is an application that provides you with the correct grammatical structure of the English language. It also has a series of exercises that are meant to test your grammar knowledge.

There are a few ways to learn, by testing yourself with a series of exercises and by taking tests.

The app has a large number of examples that include things like the basic structure of sentences, their main categories, and grammar tips. It's a good idea to use the dictionary function to improve your grammar knowledge.