Explanation of the irregular verb etre, with usage examples, interactive practice exercises (written and audio), and links to its usage as an auxiliary in compound tenses.

Notes and examples of verb tense including past, present, future, progressive, and perfective.

This introduction to the present tense conjugation of the irregular verbs "dar", "ir" and "estar" is easy to understand and includes a short test at the end to test the student's mastery of this grammar principle.

Students type the present perfect form of the verbs in parentheses using the boxes provided throughout a paragraph.

This articles discusses the importance of teaching verbs and provides tips on creating verb lessons including the definition of verbs and verb tenses.

English for Everyone provides a printable quiz to assess the application of the present progressive verb tense, a topic covered in Level 2 English.