handmademark asked, "What is a split infinitive? Why is it so bad?"

( With examples from NCIS to entertainingly aid our understanding )

rykaine asked, "What is an elliptical adverb clause?"

With examples from NCIS.

( When you follow the LJ-cut, you'll find the answer. )

tejas asked, “What’s the difference between ‘affect’ and ‘effect’?”

With examples from Stargate SG-1 and House.

( To cause the effect you desire to effect... )

earth2skye asked: When is the past perfect tense used?

With examples from Stargate SG-1, House, Harry Potter and Firefly.

( When you want to talk about the time before a time before... )

With examples from Firefly, House, and Stargate SG-1.

The short answer is, no.

The long answer is, ( it depends on the role of the conjunction. )

In the Stargate SG-1 Season 4 episode “2010,” Jack O’Neill has the following exchange with Sam’s husband, Joe:

Jack: Did you get it?
Joe: Yes.
Sam: Thank you.
Joe: What are you gonna do with it?
Jack: Send a message.
Joe: To who?
Jack: To whom.

( Is Jack right? Should Joe have used 'whom'? If so, why? )