(Some young) people= [usually] watch－ (sports) news~[at home] [at night].(主谓宾结构)
(Mr liu's )daughter= is1 free2 [on weekends].（主系表结构）
The students= (from Green High School) want to visit－ the museum～[tomorrow].（主谓宾结构）
(MY) mother= [usually] goes to work－ [by bus] [on weekdays].（主谓宾结构）
I= can't watch－ TV News～[at home] [tonight] [because I= want to visit－ my friends～]（主谓宾结构）
句子成分的名称及符号
符号：主语 = 谓语 － 宾语 定语 （ ） 状语 [ ] 补语 < > 系动词1 表语2