This is an educational application that provides a comprehensive understanding of the English language and its usage.

The app has a very simple and intuitive interface that allows users to navigate through the lessons and topics easily.

Each lesson and topic is composed of multiple sentences that are divided into four types of sub-sentences.

The user can select and highlight any of the sentences in order to understand and memorize the sentence and its meaning.

This app provides users with all the knowledge they need to be fluent in the English language.

The app allows users to navigate between sentences and topics by simply tapping on the navigation icon.