Get the dog out every day and let him run free and play with it. The dog is just board and, or , looking for attention. A 1.5 yr old pit has a lot of energy and needs a lot of space, and play time with someone else ( dog or human ). Kept in the house , a small yard, or on a Chain all the time will make the dog crazy.
The dog, chasing its tail, ran around the yard. The participial phrase is "chasing its tail."
Christopher Davino has: Played Knight 1 in "Chasing Fairy Tail" in 2013. Played Male Santa 3, Male Santa Helper 3 in "Chasing Fairy Tail" in 2013. Played Valiant Prince in News Clip 3 in "Chasing Fairy Tail" in 2013. Played Knight 3 in "Chasing Fairy Tail" in 2013. Played Valiant Knight in "Chasing Fairy Tail" in 2013. Played Knight, Prince in "Chasing Fairy Tail Trailer" in 2014.
Chasing Fairy Tail - 2013 was released on: USA: 3 August 2013 (internet)
Wild Justice - 2010 Chasing Tail was released on: USA: 18 October 2013
Chasing Fairy Tail Trailer - 2014 was released on: USA: 7 February 2014 (internet)
Chasing Tail - 2013 No Smoking 1-2 was released on: USA: April 2013
The little dog was having fun chasing his own tail.
Chasing Tail - 2013 Buckzilla in the Burbs 1-8 was released on: USA: May 2013
Chasing Tail - 2013 Deer in the Pool 1-5 was released on: USA: April 2013
Chasing Tail - 2013 Best Implants 1-4 was released on: USA: April 2013
Chasing Tail - 2013 Welcome to Deer Camp 1-1 was released on: USA: April 2013
Chase+ing is spelled chasing. You drop the 'e' and add '-ing'. The cat was chasing his tail.