1.There be 句型
eg.There is a book and some pencils on the desk.=There are some pencils and a book on the
desk.
2.not only...but also...
eg.Not only Ann but also her parents stay at home every Sunday.= Not only Ann's parents but also she stays at home every Sunday.
3.neither...nor...
eg.Neither you nor he is right.= Neither he nor you are right.
4.either...or...
eg.Either they or Jim is going to Shanghai next Saturday.= Either Jim or they are going to Shanghai next Saturday.