Question

Which of the following is not a regular verb?
A) Enter
B) Paint
C) Walk
D) Buy

Answer 1

Hint:In order to answer this question one must know what verbs are, verbs are called action words. A regular verb is one that is conjugated in a traditional form.

Complete answer:
In order to use many verb tenses in English, it is important to know the past forms of the verbs. All verbs have a base form. The majority of verbs, called regular verbs follow the same pattern and create the past simple and the past participle using the same word ending -ed. Example: accepts and accepted.

Let us discuss the given options one by one to find the correct option.
Option A) Enter: 'Enter' is the base form of the verb, its past and past participle form is 'entered'. Enter is a regular verb as its past and past participle form is formed with the addition of -ed at the end of the base form of the verb. So this option is incorrect.
Option B) Paint: Paint is the base form of the verb, its past and past participle form is painted. Paint is a regular verb as its past and past participle form is formed with the addition of -ed at the end of the base form of the verb. So this option is incorrect.
Option C) Walk: Enter is the base form of the verb, its past and past participle form is entered. Walk is a regular verb as its past and past participle form is formed with the addition of -ed at the end of the base form of the verb. So this option is incorrect.
Option D) Buy: Buy' as its past and past participle form is 'bought'. It's an irregular verb as its past and past participle form is not formed with the addition of -ed at the end of the base form of the verb 'buy'. So this is the correct option.
Hence option (D) is correct.
Note:
It is important to understand the regular verbs and how they function in English is to see them for example. There are verbs that have different endings and are called irregular verbs. A verb in which the past tense and the past participle is not formed by adding the usual -ed ending. Example- the bear, bore, and borne.