English materials for
​Secondary school in México

Third Grade

Unit 5 - Syllabus 2011
Introduction
Learn and use irregular verbs is essential for learning English. ​
English language has so many irregular verbs,  but even irregular verbs follow some patterns such as:

1. The  3 forms are similar (bet, cut, put).
2. Infinitive and simple past are similar (beat).
3. Infinitive and past participle are similar (become, come, run).
4. Simple past and past participle are similar (buy, get, send).
5. The 3 forms are different (be, do, go).​