Swim:- Hadn't been in a pool for ages, couldn't do a length of crawl - still can't without a wetsuit but why worry.
Bike:- Occasionally (like maybe once every 2 months, if there wasn't a 'Y' in the day, and if the sun was shining, and it was downhill with the wind behind me) commuted 2-3 miles.
Run:- You're having a laugh here aren't you! Hadn't run for about 3 years. I could just about walk to the bus stop on a good day.
I think I can safely say I wasn't prime Ironman material.
Managed to train occasionally, learnt to swim a bit better, did a couple of longish bikes, and I am now a racing snake - well not quite, but I did enough to get round.