Q.1. What is a non-finite verb form?
Ans: A non-finite verb form is a verb form that does not show tense and does not change according to the subject. It cannot act as the main finite verb of an independent sentence. Examples include infinitives, gerunds and participles.
Q.2. What are the three types of non-finite verb forms?
Ans: The three main types of non-finite verb forms are infinitives, gerunds and participles.
Q.3. What is an infinitive?
Ans: An infinitive is usually formed by placing "to" before the base form of a verb, for example, to eat, to run. There is also the bare infinitive (without "to") used after some verbs, as in let him go.
Q.4. Can an infinitive be used as the main verb in a sentence?
Ans: No. An infinitive cannot act as the finite main verb of an independent sentence. It can function as a noun, adjective or adverb within a sentence, for example, To learn is important, where to learn is the subject phrase but the finite verb is is.
Q.5. What is a gerund?
Ans: A gerund is a verb form that ends in -ing and functions as a noun. For example, in Swimming is good exercise, swimming is a gerund acting as the subject.
Q.6. Can a gerund be used as the main verb in a sentence?
Ans: No. A gerund cannot serve as the finite main verb of a sentence; it functions as a noun (subject, object, or complement). For example, in Reading helps you learn, reading is a gerund and helps is the finite verb.
Q.7. What is a participle?
Ans: A participle is a verb form used as an adjective or to help form verb tenses. The present participle ends in -ing, and the past participle is often -ed for regular verbs or an irregular form for other verbs. Example: the running child (present participle) and the broken door (past participle).
Q.8. What are the two types of participles?
Ans: The two types of participles are present participles (ending in -ing) and past participles (formed as -ed for regular verbs or as irregular forms for other verbs).
Q.9. How are present participles formed?
Ans: Present participles are formed by adding -ing to the base form of the verb, for example, run → running, make → making.
Q.10. How are past participles formed?
Ans: Past participles are formed by adding -ed to regular verbs (for example, walk → walked) and by using special irregular forms for irregular verbs (for example, write → written, speak → spoken).