Allow me to provide an example of a recent 15 minute drive:
W: Mommy, how do you spell light?
W: How do you spell tunnel?
W: How do you spell tree?
[Insert another 7-10 minutes of this]
W: How do you spell bumper?
W: Does dat have two Es in it?
Me: Nope, just one.
W: No, I fink it has two.
Me: Well, I'm a fantastic speller, and I know it only has one.
W: Oh. Ok. Sanks, Mommy!
Repeat after me: it's only a phase, it's only a phase...