καὶ καθήμενοι ἐτήρουν αὐτὸν ἐκεῖ.

1. καὶ
   and
2. καθήμενοι
   sitting
3. ἐτήρουν
   were watching
   were keeping, was keeping
4. αὐτὸν
   him
5. ἐκεῖ
   there
6.  
   .
    

And sitting, they were watching him there.