To convert the sentence "The culprit ran away to escape his arrest" into a compound sentence, we can use a coordinating conjunction to combine two independent clauses. An independent clause is a complete sentence that can stand alone.
Here's one way to convert the sentence into a compound sentence:
"The culprit ran away, but he couldn't escape his arrest."
In this example, the coordinating conjunction "but" is used to join the two independent clauses "The culprit ran away" and "he couldn't escape his arrest."
Another way to convert the sentence into a compound sentence is:
"The culprit ran away; however, he was unable to escape his arrest."
In this example, the semicolon ";" is used to separate the two independent clauses, and the conjunctive adverb "however" is used to show the relationship between the two clauses.
Both of these compound sentences maintain the meaning of the original sentence but provide a clearer separation between the actions of running away and being unable to escape arrest.