TurtleDiary.com offers creative online games with compound words to help students to increase their cognitive abilities in language learning. Beginning at the kindergarten level and moving up, our compound word online games offer a variety of fun learning experiences and help students increase their knowledge one step at a time.Irregular verbs never follow the verb conjugation patterns of regular verbs, such as adding -ed to the past tense. When using irregular verbs in the 12 different tenses, it is important to always follow the rules of that specific verb. You must also remember that some verbs have different past tenses, such as flew and flown. (I flew in the plane. I had flown to California.)