Learn English Grammar Tenses is an iPhone application developed by Petr Kulaty. It is a free educational program categorized under Education & Reference. This application is designed to help users improve their understanding and usage of English grammar tenses.

The program is divided into three main sections. Section 1 includes a diagnostic test, a table of tenses, and lessons on present simple and continuous, past simple and continuous, present perfect simple and continuous, past perfect simple and continuous, future simple and continuous, and future perfect simple and continuous. Section 2 consists of another diagnostic test, a table of verb forms, and lessons on going to versus present tenses for the future, passive voice, time clauses, conditional tense, if clauses, indirect speech, and irregular verbs.

The Grammar Rules section provides a comprehensive table of tenses and clear explanations of their forms and uses in simple English. It also includes numerous examples from everyday English that highlight the contrasts between different forms.

The Grammar Exercises section offers 129 exercises with a total of 1330 questions. Users can practice all tenses by either filling in the gaps with their answers or selecting the correct forms from multiple-choice options. After completing each exercise, users can check their answers or view the correct forms. The program also provides immediate marking of answers at the end of each exercise.

With Learn English Grammar Tenses, users can improve their understanding and usage of English tenses within one or two months. Whether you are a beginner or an advanced learner, this comprehensive guide and practice tool will help you master English grammar tenses effectively.