often
是一般现在时的标志,主语是三单时,谓语动词用第三你称单数
但要注意:如果句中有明显的过去的时间状语时要用一般过去时,如
He
often
goes
to
school
on
foot
.
He
often
went
to
school
on
foot
last
year
.
你好,often是频率副词,谓语动词用一般现在时,单三+s
常见频率副词还有:never
,seldom
,sometimes
,often
,usually,always
如果句子中主语是第三人称单数,
动词用三单,