to后面加什么形容词

不定式
放在adj后面通常做
宾补
,或者是句子的真正主语.
It
is
very
useful
to
keep
a
ditionary
.(It做
形式主语
,to
do做真正主语)
It
very
gald
to
see
there.在这里遇见你真开心.
不定式补充说明开心的原因.
如果to是介词,后面就加n或V-ing.
I
look
foward
to
having
a
holiday.我希望有个假期.(to是介词,后面接ing)
It
is
to
you.这是给你的.后面接代词.

it'samyth.be后面加了名词作表语。
it'sdefinitelyamyth.definitely修饰is——副词修饰动词。
it'sadefinitemyth.definite修饰名词myth——形容词修饰名词。