This book deals with verbal aspects in the Croatian language. It is intended for schools, students, courses, and self-study at the A2 level and for higher levels when learning Croatian as a foreign language. The work is also designed as a resource for teachers in the classroom. It explains the complex topic of verbal aspects in a clear and understandable way at the A2 and B1 levels according to the CEFR (Common European Framework of Reference for Languages). The explanations at the A2 level are accompanied by exercises (fill-in-the-blank texts). These fill-in-the-blank texts are written in the form of practical dialogues to help learners become familiar with the application of verbal aspects in practice. This book is part of the learning set "Ja govorim hrvatski 2". In the teaching and grammar book "Ja govorim hrvatski 2", the chapter is found in the last (9th) lesson.