<p>I was going through Silverturtle’s guide and I don’t understand this example.</p>
<p>“In fact, there are some times when moving the preposition from the end of the sentence is incorrect:
I ran up the restaurant tab. Up what did you run?
Why is that second sentence wrong? Because run up is a phrasal verb; it consists of the verb run and the particle (a cool name for the preposition of a phrasal verb), which is up in this case. The components of a phrasal verb cannot be separated. Some other phrasal verbs: make up, run into, and show up.” </p>
<p>Could I get some clarification or other examples on this topic please? Thanks!</p>