Обусловь в каждом предложении часть речи у слов с суффиксом ING.

Обусловь в каждом предложении часть речи у слов с суффиксом ING.
GERUND( герундий)? PARTICIPLE I? ( причастие) PROGRESSIVE TENSES?( долгие времена)
1) I see a coming train.
2) I like walking in the park.
3) I was walking in the park yesterday during 2 hours.
4) A smiling girl is coming at the street.
5) I am reading a book now.
6) Swimming is very useful.
7) I like writing stories.
8) We enjoy playing football.
9) I see playing children in the yard.
10) We will be writing the test tomorrow during 3 hours
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