Question

Fill in the blank with the correct form of the infinitive verb to complete the sentence-
Radha had better ____ now.
A. slept
B. sleep
C. sleeping
D. to sleep

Answer 1

Hint: Infinitives refer to those verbs that are preceded by ‘to’. For example- to drink, to laugh, etc. The usage of ‘had better’ in the sentence suggests that something is one step ahead of the other.

Complete answer:
Let’s look at the usage of infinitives-
For example- She had to leave town. Here, ‘to leave’ is an infinitive.
In the given question- We can see the use of ‘had better’. Hence, the correct answer is; Radha had better sleep now. We use ‘to infinitive’ with ‘had better’ only when it is in the passive form.
Now, let’s examine the given options-
Option A. ‘slept’ is an incorrect option because it is the past tense form of the verb ‘sleep’. But we need to use the bare infinitive.
Option B. sleep’ is the correct option because it is given in its base form and is a bare infinitive.
Option C. ‘sleeping’ is an incorrect option because it is given in the continuous form of the verb ‘sleep’.
Option D. ‘to sleep’ is an incorrect option because the sentence has been given in the active voice. We do not use infinitives with active voice. The correct answer is Option ‘b’.

Note:
Keep in mind, we do not use ‘to infinitive’ with ‘had better’. The infinitives that function without ‘to’ are known as bare infinitives.