Verbs that do not play by the standard spelling rules but are commonly found in works are called irregular verbs. Most verbs that are formed in the past tense end in one of three ways -d, -ed, or -ied. Most simple past verbs just end in the letter combination -ed, but not when it comes to the irregulars. This results in the spelling being out of whack, to some extent, require students to memorize a pattern of words. These types of words are known as strong words because they push the action to the maximum very quickly.
The best way to approach learning these forms of verbs is to memorize them. They often become automatic by the time students enter middle school because irregular verbs are often used in natural speech. Students will hear others using these words normally. Below you will find a large selection of worksheets that will help you identify and use irregular speech more accurately.