部分倒装：只把系动词，情态动词，助动词或表语放在主语之前。完全倒装：整个谓语移至主语之前。如果谓语只有一个be动词，那就看不出来了，看其他谓语比较明显，比如Never will I forget the days when you were with us.这里谓语是will forget，但只有will提前了，这就是部分倒装。Nowhere have I been to since I came back from Beijing.这里谓语是have been，但只有助动词have提前了。
原句：He cannot sleep because he is too excited
全倒装：Being too excited，he cannot sleep
原句：He counted from 1 to 100 in order，sleep
倒装：In order to sleep，he counted from 1 to 100
be动词提前。
例如：
Not only am I a teacher， but also a good soccer player.
