In the following sentence, identify the part which contains the error:

The feeble, old man / is too weak / not to / walk.

Correct option is C

The error lies in part (3) "not to." The phrase "too weak to walk" is correct, while adding "not" changes the meaning incorrectly. The correct structure is: "too + adjective + to + verb" Here, "too weak to walk" indicates that the old man is so weak that he cannot walk. Thus, "not" is unnecessary and must be removed. The corrected sentence should be: "The feeble, old man is too weak to walk."
Information Booster
· "Too ... to" construction indicates incapability or excessiveness.
· Structure: Subject + verb + too + adjective + to + base verb.
· Example:
· "He is too tired to work."
· "She is too young to drive."
· Adding "not" after "too" confuses the intended meaning.
· "Not" is only used when negating a simple infinitive, not with "too" structures.
Additional Information
· (1) The feeble, old man:
· Correct; "feeble" and "old" are properly used adjectives.
· (2) is too weak:
· Correct; "is" correctly matches the subject and "too weak" fits grammatically.
· (4) walk:
· Correct; "walk" as a base form verb after "to" is appropriate.