Many English verbs follow the same pattern when used in the past tense, you simply add '-ed'. But if English was as easy to learn as that, then all our ESO teachers would be out of job. There are of course many exceptions. Incorrectly adding '-ed' to the end of a word to denote the past tense is one of the most common grammar errors in English.Our English past tenses video will teach you how to express yourself in the past tense, and identify some of the more commonly used irregular verbs. This video is part of our affordable package or pre-recorded grammar lessons, a cost-effective way to learn basic English principles.