疑问词+to 在句子中能做什么成分?

Question

如题所述

Answer 1

“疑问词+to
do”结构具有名词的词性作用，在句子中能做主语、宾语、表语。如：

I
don't
know
what
to
do
next.

When
to
have
a
meeting
hasn't
been
decided.

The
question
is
whether
to
invite
her
to
my
party.