Print

 

The main verbs are classified as regular verbs or irregular verbs. Both types of verbs can be identified by how their past tense and past participle are formed. Unlike the regular verbs that form their past tense and past participle by using the suffix –d or mostly –ed for their base form, the irregular verbs change their base forms, such as the vowels to form their past tense and past participle as indicated in the following examples. 

 

Regular verbs
The past tense and past participle of regular verbs end in –d or –ed.
–d:
  • Present tense – die, like, move, place, squeeze
  • Past tense – died, like, moved, placed, squeezed
  • Past participle – died, liked, moved, placed, squeezed
–ed:
Regular verbs ending in consonants
Many regular verbs that end in a consonant; for example, –b, –g, –p will double its consonant followed by –ed: robbed, rubbed, flogged, tugged, stepped, stopped.
Regular verbs that end in –c,  –ked is added: picnic/picnicked; panic/panicked
Regular verbs that end in –y, drop the –y and add –ied: carry/carried; hurry/hurried; worry/worried

 

Irregular verbs
The past tense and past participle of irregular verbs do not follow the above regular pattern of grammar. They do not end in –d or –ed.
 
Where only the past tense and past participle are the same
  • Present tense - carry, die, fit, jump, show, try
  • Past tense - carried, died, fitted, jumped, showed, tried
  • Past participle - carried, died, fitted, jumped, showed, tried
Where all three forms are the same
  • Present tense - cost, cut, hurt, put, read, shut
  • Past tense - cost, cut, hurt, put, read, shut
  • Past participle - cost, cut, hurt, put, read, shut
Where all three forms are different
  • Present tense - begin, choose, do, go, lie, see
  • Past tense - began, chose, did, went, lay, saw
  • Past participle - begun, chosen, done, gone, lain, seen
Where the past and participle forms can be regular and irregular

 

Most irregular verb
The verb to be is the most irregular verb as indicate here:
Infinitive: to be
Present tense: am, is, are
Past tense: was, were
Present Participle: being
Past Participle: been
Present Subjunctive: be
Past Subjunctive: were
Imperative: be

 

(List 5 shows lists of different forms of irregular verbs.)