Choose the part of the sentence that contains an error:
She does not know to swim.
Show answer & explanation
Correct answer: B
Explanation
In English grammar, verbs like know, learn, show, and teach require how/where/when/why before the infinitive (to + verb) to indicate the method or manner of the action.
When using the verb know to describe a skill or ability, it must be followed by a "how" clause rather than just an infinitive.
Incorrect: She does not know to swim.
Correct: She does not know how to swim.