The Doctor, who’s TARDIS is blue, knows whose in need of grammar help in “Doctor Whom.”

Sorry for making your head hurt and your eyes bleed.

Before you attempt to contact us to rant about the atrocious grammar in the header, it was meant as a joke.

Just about every single day, we are asked about “who” vs. “whom” vs. “who’s” vs. “whose” in some combination. In the following paragraphs, we will try to explain these tricky terms as clearly as possible.

Let’s take a look at whom, the most abstruse of the four terms.

Here are some example sentences to illustrate how that works:

  1. For whom did you bake the cake?
  2. Did you want to know whom I will be going to prom with, Mom?
  3. At whom did you blow that kiss?

That was easy. But what happens when we don’t have prepositions to make things so convenient? Fear not.

Let’s see this in action:

That more or less takes care of the confusion between who and whom.

Let’s now move on to the homophones who’s and whose.

In short, use whose only to indicate possession. (And not the kind that requires an exorcist.)

That wasn’t so tough, was it?

Before closing, here’s one more example using the beloved Tenth Doctor.

On whose face is the Doctor drawing?

For the honor of righteous grammar, the title of this post should have read The Doctor, whose TARDIS is blue, knows who’s in need of help in “Doctor Who.”