Here there這是方位副詞至于句首時的倒裝句形式,要用完全倒裝.也就是說,要把謂語動詞提到句首.(不完全倒裝指的是把助動詞提前),給你舉個例子吧,A car comes here.若把here提到句首,就要把動詞comes提到句首,變成Here comes a car.There的用法和它一樣.至于Only,是指的“Only+狀語”置于句首時的倒裝,主謂語需要倒裝.例如下面兩個句子：
 1) Only by practicing a lot outside class can we speak English fluently.這里we can變?yōu)榱薱an we 2) Only when I saw him did I remember that I promised to bring him a gift.這里是I remembered變?yōu)榱薲id I remember
not only位于句首時的倒裝,也是局部倒裝.例如,Not only did we lose our money,but we were also in danger of losing our lives.把we lost這個正常語序變?yōu)榱薲id we lose這種助動詞提前的形式
明白了嗎