主谓句就是由主语+谓语的句子.
例如：I sing.
He runs.
宾语前置就是将宾语提到句子的主谓语前面,不过一般都是强调句型或是定语从句.
例如：It is the teacher that/who I want to see.the teacher提到了I want to see的前面.
I don't like the book that you are reading.the book提到了reading的前面.