1、意思是“堅持要”表示命令、要求，其後之賓語從句要用虛擬式動詞原形
或者“should
+
動詞原形”
例句：
i
insist
that
you
(should)
be
present.
they
insisted
that
she
(should)
be
invited.
i
insist
that
you
(should)
see
a
doctor.
she
insisted
that
he
(should)
go.
這種虛擬語氣的用法除了“insist”還有：demand,suggest,order,propose.
2、意思是“堅持說，硬說”，其後賓語從句用普通時式，不用虛擬語氣的哦。
例句：
she
insisted
that
he
was
wrong.