Should I put a comma after "like" in the phrase "They live like cats and dogs"? - briefly
No, you should not put a comma after "like" in the phrase "They live like cats and dogs." In this context, "like" is used as a preposition rather than a conjunction, and commas are not typically placed after prepositions unless they introduce a nonrestrictive relative clause or other parenthetical element.
Should I put a comma after "like" in the phrase "They live like cats and dogs"? - in detail
The use of commas in English sentences is governed by rules that aim to enhance clarity and readability. When considering whether to place a comma after the word "like" in the phrase "They live like cats and dogs," it is essential to understand the grammatical function of "like" in this context.
In the given sentence, "like" functions as a preposition, introducing a prepositional phrase that modifies the verb "live." The prepositional phrase "like cats and dogs" provides additional information about the manner in which the subject "They" lives. When a prepositional phrase follows a verb and is essential to understanding the meaning of the sentence, it is typically not set off by commas.
Therefore, according to standard English punctuation rules, a comma should not be placed after "like" in the phrase "They live like cats and dogs." The absence of a comma correctly indicates that the prepositional phrase "like cats and dogs" is closely tied to the verb "live," modifying it directly. Including a comma would incorrectly suggest a pause or separation, which could potentially alter the intended meaning of the sentence.
In summary, adhering to proper grammatical conventions ensures that your writing remains clear and precise. In this specific case, omitting the comma after "like" accurately reflects the relationship between the verb and its modifying prepositional phrase.