Question

Select the correct option to complete the given sentence.
I always forget to take my toothbrush along and have ___________ a new one.

• A. buying
• B. bought
• C. having bought
• D. to buy

Answer 1

Answer: (D)

to buy

Option D - 'To buy' is the infinitive form of the verb. Infinitive is formed by adding 'to' before the verb, as in the given option. Infinitive is used to express purpose. It can also be used as subject or complement of a sentence.

On the other hand, Option A - 'buying' is verb in the form of present participle. It functions as adjectives, describing or modifying nouns.

Option B - 'bought' is non-finite verb too. It is past participle form of verb. Past participle form of verb can be used to form adjectives.

Option C - 'having bought' emphasizes on an action which gets completed before the next action occurs.

In the given sentence, the infinitive is working as the subject complement.

Therefore, the correct option to complete the given sentence is : Option D - 'to buy'

The completed sentence, thus, becomes : I always forget to take my toothbrush along and have to buy a new one.