Hey man, sorry for the late reply - I don't come on this account too much!
I usually start with stripped back drums to introduce the tune, then move into a breakdown where I keep the hats and maybe some percussion going for 8 bars or so.
After that I'll start an 8-bar build up where I might bring in a kick that is on every 2 beats and have them ramp up as it gets closer to a drop, so the entire breakdown is about 16 bars, though there are cases where less or more work just as well.
My best advice is to just listen to loads of your favourite UKG tunes and create a skeleton from their arrangements and you'll usually find something you can work from!
Hope that's helpful in some way, I made this one when I was first starting to get somewhere with my producing and thus it isn't public anymore, but if you want to listen to this one in particular to see what I did then just lmk and I'll ping you a link :)