I can't swim, either.
3 seconds sound clip from the Hondo (1953) movie soundboard.
You can hear this line at 00:56:43 in the Blu-ray version of the movie.
Quote context
[...]
- I did it, Emberato, I did it.
- Good.
- Swim.
- Angie, there's something I've got to tell you. I tried to tell you. And it isn't going to be easy.
- Just look at the moon. How odd it looks in this quarter.
- I suppose the Indians have a word for it.
[...]