Question

Fill in the blanks with the most suitable non-finite verb to complete the sentence:
Doctor told me that I should be ___________ for a walk every day.
a)Going
b)To go
c)Gone
d)Go

Answer 1

Hint: A non-finite does not exhibit any kind of tense, person or number; they are neutral in nature and have three different types- gerunds, participles, and infinitives.

Complete step by step answer:
The three types of a non-finite verb can be distinguished by remembering that – gerunds end with – ing, participles end with ‘– ing’, ‘-ed’, ‘-d’, ‘-t’, ‘-en’, or ’-n’ whereas, infinitives are preceded with ‘to’.
b) - here, 'be' is a verb that explains one's state of being. 'To' is used when the actions are not real or abstract. Therefore, option ‘b’ is incorrect.
c) - 'gone' is the past participle form of the verb, but by looking at the sentence we can see that it is in the simple present tense, therefore, we can't use 'gone' here. Hence, option ‘c’ is incorrect.
d) - 'go' is the verb in its original form and not in non-finite form; we can't use 'go' here. Hence, option‘d’ is incorrect.
a) - 'going' is the participle form of the verb a gerund which is used when the actions are real in case of a non-finite verb. Here, it doesn't explain the tense of the sentence also. Hence, option ‘a’ is the correct answer, i.e. 'Doctor told me that I should be going for a walk every day.'

Note: Finite verb forms show tense, person, and number. For example - I go, she goes, we went, etc.