I don't know what it was.

4 seconds sound clip from the Predator (1987) movie soundboard.

You can hear this line at 01:00:27 in the Blu-ray version of the movie.

Quote context

[...]

- He's killing us one at a time. Like a hunter.

- He's using the trees.

- Yesterday, what did you see?

- You're wasting your time.

- No more games.

- I don't know what it was.

- Go on. (2)

- It changed colours like the chameleon.

- It uses the jungle.

- Are you sayin' that Blain and Hawkins were killed by a fuckin' lizard?

[...]