The conversation between human and AI assistant.
Are these normal errors for a non-native English speaker if they are 28 and have been here since they were 11?
What can my friend do to improve her English skills?
There are many ways your friend can improve her English skills, such as practicing speaking with native speakers, taking classes or courses, watching English-language films or TV shows, and reading English-language books or articles. It's also important to not be afraid of making mistakes and to keep practicing and using the language as much as possible.