this time is the best time有没有语法错误

This is my third time swimming in the sea.这句话有没有语法错误? Time is the best I enjoy this time to with the kids.这句话有没有语法错误? Everything is changing all the time 有语法错误吗? It‘s the best time to skat in winter.这句话有语法错误吗? She try to best to finished the task in time.这句话有语法错误吗? time is how fast有语法错误吗? this is the time to This Is The Time 歌词 This is the last time this time the light is this is the first time this was the first time 怎么用,有什么区别?