As you explore the perfect tenses, direct your class to this resource, which provides explanation and examples for reference as well as an online interactive exercise for practice. They can first read up on haber and either continue...

This page explains verb conjugations including persons: first, second, and third person; number: singular and plural; and tenses: present, past, and future and simple, continuous, and perfect. It provides examples of verb conjugations.

This page explains the five forms of verbs: root, third-person singular,present participle, past, and past participle and provides examples of each.

As you learn possessive forms, you will also learn about gerunds, present participles, compound nouns and more. This is a very complete resource tool for this subject.