First of all, I'm sorry that I wasn't clear.
I wondered if the uses of the past participles are correct or not. Now I've got the answer; they are correct. However, after I read your answer, I have another question. Please help me again with my thoughts.
Here are my thoughts.
1. completed action, resulting state
You said; I'm sad to see the flowers withered away. (= the flowers are withered away")
I wonder; I'm sad to see the flowers withered away. (= the flowers have withered away")
Which is natural, "are withered" or "have withered"?
2. on-going action
- I'm sad to see the flowers withering away.
I think this is natural, isn't it?
3. bare verb
- I'm sad to see the flowers wither away.
I wondered if this expresses a completed action or more of an on-going action. Now I think it's the action itself. Am I right?
Here is another set of sentences.
I think "I saw him crossing the road" expresses an on-going action, and "I saw him cross the road" expresses the action itself; in this context. the whole action, i.e. more of a completed action. Am I right?
Thank you always.