The development of communicative competence is a fundamental objective in elementary school. The teaching of the linguistic means to achieve it is conceived from the subject Spanish - Literature. In the present work a system of exercises is proposed for the study of the verbal morphemes mode and time from the text in function of the textual comprehension. In the development of the research, methods and techniques of the theoretical and empirical level were used: historical - logical, analysis - synthesis, inductive - deductive, systemic - structural, modeling, observation, interview, survey and pedagogical test. The results of the implementation demonstrate the effectiveness of the system of exercises, which showed a significant increase in the students' learning levels in the recognition of modes and simple tenses of verb forms, as well as their meaning and use in the text according to the communicative intention.