T.R.
With my son, we had this too. he would go in the potty for a while and then start wetting again but could tell us when he was having an accident.
I finally took some advice from my coworkers. My husband went to Poland for 2 weeks so we had him out of daycare for that time and at home. We put him in underwear with plastic pants over top of them for the whole 2 weeks except we used pull ups at bed and nap. He would get a sticker every time he went potty and we would make a BIG BIG deal over how many stickers he would get. We wouldn't 'punish' him by taking any away if he had an accident but would tell him accidents happen please tell mommy/ granny/ or grandpa next time you have to go.
I had A LOT of underwear to wash for those 2 weeks. He wasn't good at peeing in the potty with the grandparents but when I was home with him he did better. Then on easter it finally 'clicked' and he was potty trained.
We have had some regression and accidents but it seemed to work. We had a lot of time put in with him before this also but it seemed since he was home for 2 weeks it was the perfect time to work on it. If you have the time and energy to do this it may work. We really didn't take him out anywhere during htis time either.
Here's another one- don't know if it works or not- never tried
My aunt's MIL who runs a daycare trained her daughter in one day. She puts the child in underwear and on a bare floor (no carpet or rugs- usually in the kitchen). The child 'practices' all day going in the potty (on the floor by them). It seemed to work for her but I didn't think this would work for my son.
Everyone has a different way to do it and you have to see waht works for your child. Don't push too hard but it sounds like she is getting close. You are just waiting for the 'click' stickers worked for us and making a HUGE deal out of it every time he went and trying not to react when he had an accident.
Good luck!