One of the most significant challenges Polish language students face is the role of verb aspect in expressing various forms of aspects. In this book, you will find all you need to know about perfective and imperfective Polish verbs. Conjugation of imperfective and perfective verbs in the past, present, and future tenses in both forms. This book contains a list of verbs arranged in pairs: imperfective and perfective, as well as single verbs. The verbs are presented in alphabetical order, beginning with the imperfective infinitive, which facilitates research, review, and learning. Each verb has four example sentences in each aspect, with translation, ten exercises in each aspect, and twenty mixed exercises with answers.