There are couples of hundred Irregular Verbs. These forms are also known as Principal parts. Similar to Regular Verbs, these Verbs too have five forms. Sometimes, even whole word can be different. Unlike Regular Verbs, these Verbs do not have fixed ending of Past and Past Participle forms. In the table below we can see Irregular Verbs along with their forms. These Verbs are also called Weak Verbs and have five forms. These Verbs are more consistent than Irregular Verbs and larger in number. Regular Verbs are those verbs whose Past Tense and Past Participle are formed by adding –d or –ed. The Majority of English Verbs which rarely change their form are called Regular Verbs.