1) Aped minnows 2) Began a triathlon 3) Began a typical triathlon 4) Came crawling back 5) Challenged the Channel 6) Competed against Mark Spitz 7) Competed in a triathlon 8) Competed like Michael Phelps 9) Competed with Michael Phelps 10) Completed part of a triathlon 11) Crawled 12) Crawled back and forth 1) Bathed 
• imp. of Swim. • (imp.) of Swim
Swam imperfect of Swim .