Answer:
None of my answers are really defined- but I hope this helps either way :3
1) The participle in that sentence is "had the" or "had the clerk"
2) It is a past participle
3) The participle phrase may be "seen such a focused man"
I do, I make them at the fair every year! :)
Well, you could not ge to war. You could make better schools. Etc.
