This book is aimed at children in the early school years. Theoretically, it covers the curriculum prescribed by the current Analytical Program of the Ministry of Education for the 1st and 2nd grades of elementary school, concerning verbs, nouns, and adjectives. The approach to these grammatical phenomena is made by the child through research and observation. Mastery and assimilation are achieved with ease and comfort through a wide variety of suitable exercises that follow at the end of each lesson.