really是强调语，强调哪个词或词组就置于哪个被强调的词或词组之前。

1）情态动词

I can really swim. 操作词can弱读。强调swim。真正的游泳，不是狗爬式。

I really can swim. 操作词can重读，强调can. 真的会游泳。

2）名词

It is a really beautiful city. 强调形容词beautiful。一个确实很漂亮的城市

It is really a beautiful city. 强调名词词组。确实是个漂亮城市。

3）助动词

I don't really like this book. 强调动词like. 我不是真的喜欢这本书。

I really don't like this book. 强调don't like. 我真的不喜欢这本书。