Been watching you for some time.
2 seconds sound clip from the 18 Bronze Girls of Shaolin (1983) movie soundboard.
You can hear this line at 00:42:33.830 in the DVD version of the movie.
Quote context
[...]
- It's me. I'm a waiter here. Excuse me, I thought you knew.
- Stop your lying. You wanted to watch them taking a bath.
- Well, young man, you've trapped yourself.
- You thought that they were the three ugly brothers, didn't you? Well, they're not.
- Been watching you for some time.
- Now then, who sent you over here to spy on us? Was it Pai Yen Pei? Come on, tell me.
- Confess and I'll spare your life.
[...]