Are they和They are有什么不同

Are they和Are there有什么不同? there they are.和they are there有什么区别? they play together和they are play together有什么不同 they are all my friends they are both my friends有什么不同 there are和they are 我总是分不清楚,有什么不同吗?还有their和they有什么不同?在什么时候用得上 here you are和here they are有什么区别? what are they 和 what they are so they are 和 so are they They are 和 Are they用法 where they are 和where are they them are和they are ther are和they're读法有什么区别?