In this resource you will find a visual and concise guide of the twelve basic tenses in English. The twelve tenses included in this guide are: Past simple Present simple Future simple (will) Past continuous Present continuous Future continuous (will) Past perfect Present perfect Future perfect Past perfect continuous Present perfect continuous Future perfect continuous Each tense includes the uses and forms (affirmative, negative, & interrogative) as well as a timeline and graphic examples. In some tenses, you can find the most common mistakes of usage. It also includes grammar worksheets with 5 different exercises of the tenses. This resource is ideal for both teachers and students (intermediate and upper-intermediate) who want to have a clear and effective grammar reference guide.