Indicate whether each of the italicized words in the following sentences is used as a participle or as the main verb of the sentence. (Remember that a participle standing alone can't be the main verb of a sentence.)

1) The dog is tugging at the chain fastened to the pole.
Participles:
Main Verbs:

2) His walking shoes are still good as new.
Participles:
Main Verbs:

3) The hanging plant is a philodendron.
Participles:
Main Verbs:

4) I don't think we'll be able to mend the broken dish.
Participles:
Main Verbs: