Learn Hardcore Spanish (Spain): Correr en la arena me cansa mucho.

Breakdown of Correr en la arena me cansa mucho.

Why does the sentence start with correr instead of a conjugated verb?

Because correr is being used as an infinitive meaning running.

In Spanish, an infinitive can act like a noun:

So in Correr en la arena me cansa mucho, the whole idea running on the sand is the subject of the sentence.

Why is it me cansa and not me canso?

Because cansa agrees with the subject, which is correr en la arena.

Here is the structure:

So literally, it is something like:

If you said me canso, that would mean I get tired:

Me canso mucho corriendo en la arena. = I get very tired running on the sand.

Both are possible in Spanish, but they mean slightly different things.

What exactly does me do here?