Which sentence is correct: "She is good at swimming" or "Is she good at swim"?
When discussing someone's proficiency in an activity, the correct usage is "She is good at swimming." In this construction, the preposition "at" indicates that the action of swimming is the specific activity in which the person excels.
Using only the verb form "swim" without a preposition is incorrect in this context. The absence of a preposition leaves the sentence ambiguous and could lead to different interpretations. For instance, "Is she good at swim?" could potentially refer to whether the person is skilled at using the verb itself as opposed to the actual activity of swimming.
Therefore, the grammatically correct and unambiguous sentence is: "She is good at swimming."
Related questions and answers:
- What is the function of the preposition "at" in the sentence? Answer: The preposition "at" indicates the specific activity in which the person excels.
- Why is "Is she good at swim?" incorrect? Answer: Using the verb form "swim" without a preposition results in an ambiguous sentence.
- What is a preposition? Answer: A preposition is a word that shows the relationship between a noun or pronoun and another word in the sentence.
- What other prepositions can be used in similar constructions? Answer: Other common prepositions include "in," "on," and "with."
- How can I improve my grammar in English? Answer: Practice regularly, read widely, and seek feedback from native speakers or English teachers.
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