Hiking is the present participle of hike.
The past participle is Hiked. Hike is a regular verb that doesn't change when it is in the past participle. You only must add Had. Example: Present: I hike in the woods Past: I hiked in the woods. Past participle: I had hiked in the woods.
( has ) hiked
Being is the present participle. The past participle is been.
Getting is the present participle of get.
The present participle is doing.
Presenting is the present participle of present.
Presenting is the present participle of present.
The present participle is choosing.
The present participle is walking.
The present participle is cleaning.
The present participle is leading.
The present participle of "understand" is "understanding."