The app has two sections: rules and practice. The rules explain the different tenses and the different grammatical rules.

The practice section contains different exercises that you can use to test your knowledge of the grammar. These exercises are divided into three categories: simple, continuous, and past.

You can use the app as follows:

Start by choosing the topic you want to study (present, past, future, or simple). Then, select the tense you want to study (present, continuous, past, or simple). You can use the topic and the tense in the same exercise. You can use the app to study a single topic or exercise at a time.