Some children take longer than others to learn how to control their excretory system. You need to be patient with them, You need to give your child confidence and praise every time he/she tries to go potty. Make a big deal when success happens, but know accidents are normal.
Ask your child often to try and go potty if your child does not volunteer, and keep training panties handy explaining how boys and girls who go potty are big enough for panties like school children [or if siblings ] like sis/ brother wear.
Keep books next to potty chair and set a time for child to do his/her business. Never yell...It will happen:) If you have more issues, contact your child's doctor..
Repetition. Constantly asking her if she needs to go. And if it's been a while, put her on the pot even if she says she doesn't need to go. At night, get her up about half way through the night's sleep and get her to go. Stretch that out for longer periods of time and she'll be good to go in short order.
First and foremost, be patient. when i potty trained my son, I just put him in underwear and said "your a big boy now. Big boys go in the potty." Within 3 days he was potty trained. We had a few accidents in that 3day period, but that is to be expected. When you take them out of diapers or pull-ups and put them in underwear and they start having accidents in their underwear, they do not like the feeling of it because there's nothing to soak it up. Start timing the potty breaks from the time you give them fluid to the time you think that he or she will need to go, and put them on the toilet. Remember to remain positive and give lots of praise when they go. Thank them for trying when they don't and give them a high 5. All children are different and require different methods and different amounts of time. The key is to be patient, and not get frustrated, or better yet, not show them that you're frustrated, because it can be very frustrating at times. Good luck!