I decided to develop this app to share my English grammar knowledge while I earn money. So this app consists of seven categories. They are introduction to English grammar, grammar rules, intermediate English, advanced English, professional English 1, professional English 2 and about me. I will include all the basic grammar concepts in the first category. Some of the main topics would be the different stages of a verb, nouns, plural nouns, Present Continuous tense, proper nouns, adjectives, pronouns, Present Perfect tenses. In the second category that means the grammar rules, I have decided to include nouns without plurals, possessive forms, adjectives, Future Tense, superlative adjectives, adverbs, can and cannot with the must and mustn't. Third category was allocated to explain about the intermediate level of English grammar starting with the verb be. After that, It will gradually move onto Past Tense, plural nouns, a pair of, parts of a sentence, who and what, short verb forms, uncountable nouns with articles, verb stems, shall and will, advanced level of adjectives, prepositions, passive verbs, how to make orders, which and helping verbs. When I complete the third category, I will move onto the fourth category, which is the advanced English. The advanced English will start with Present Perfect tenses. After that, I can move to joining words, transitive and intransitive verbs, may, for & since, the connection between the Past and Present Perfect tenses, Past Continuous, direct & indirect speech, the parts of a sentence, should & ought, to-stem & stem, if & unless, how to use will & shall with i and we, Present Participle & Past participle and finally the usage of need. When I complete the fourth category, I will start preparing the fifth and sixth categories gradually. They are professional English 1 and Professional English 2. The professional English 1 category consists of all the grammar theories related to the professional level. Which will start with the advanced form of the verb. Then I can move onto the advanced level of Perfect tenses. They are Present Perfect and Past Perfect tenses. After completing those sections, I can explain the conditional Perfect Tenses. Then, I decided to teach about the different versions of continuous tenses. They are Present Continuous, Future Continuous, Past Continuous, Prefect Continuous. At the end of the fifth category, I will explain the advanced level of Future Tenses. In the sixth category, the conditional tenses will be explained. After that, should have tenses will be explained in active and passive format. When I reach the last section of the sixth category, I will explain past forms. In the final section of the sixth category, the verb-noun will be explained. All these sections will be done exercises and answers related to them. So any student can check the accuracy of exercises.