often不是情態(tài)動(dòng)詞。情態(tài)動(dòng)詞后面要接動(dòng)詞原形。情態(tài)動(dòng)詞有:can may must should could 等。often是個(gè)頻度副詞，和一般現(xiàn)在時(shí)態(tài)連用，通常表示經(jīng)常發(fā)生的動(dòng)作。often的位置：表示“經(jīng)?！?，通常放在行為動(dòng)詞之前，特殊動(dòng)詞（助動(dòng)詞、情態(tài)動(dòng)詞以及動(dòng)詞be）之后。

often的用法

often的用法：一般用于動(dòng)詞之前, be 和助動(dòng)詞之后, 有時(shí)也用于句末以加強(qiáng)語(yǔ)氣。

1.often放在be動(dòng)詞后。

He is often late for school.

他經(jīng)常上學(xué)遲到。

2.often放在實(shí)義動(dòng)詞前。

He often goes to school by bike.

他常騎自行車上學(xué)。

3.often與very或quite連用表示強(qiáng)調(diào)時(shí)，既可放句中，也可放句首或句末。

My father very often goes to Beijing on business.

Very often my father goes to Beijing on business.

My father goes to Beijing on business very often.

我父親經(jīng)常去北京出差。

often的短語(yǔ)

every so often

有時(shí),偶爾 sometime

Every so often, she takes a weekend in London.她有時(shí)在倫敦過周末。

as often as not

1.經(jīng)常;在通常情況下

其實(shí)我有兩個(gè)家，因?yàn)槲页Ｈニ依铩?/p>

I had two homes really, because as often as not I was down at her house.

more often than not

1.往往，多半

食物很少，他們經(jīng)常挨餓。

food is scarce and more often than not they go hungry.