The best way to approach learning these forms of verbs is to memorize them.
These types of words are known as strong words because they push the action to the maximum very quickly. This results in the spelling being out of whack, to some extent, require students to memorize a pattern of words. Most simple past verbs just end in the letter combination -ed, but not when it comes to the irregulars. Most verbs that are formed in the past tense end in one of three ways -d, -ed, or -ied. Verbs that do not play by the standard spelling rules but are commonly found in works are called irregular verbs.
