Howtodo是个句型吗?从语法上我无法理解它的结构,不是这个意思！例：Howtomakeafruitsalad?我理解它作为从句的意思

Question

How to do是个句型吗?
从语法上我无法理解它的结构,
不是这个意思！例：How to make a fruit salad?我理解它作为从句的意思

Answer 1

这是一个结构,不是一个句子.
这种结构,还有:when to do ,why to do ,what to do ,which do ,where to do.
常常有以下这些动词/词组后接这类结构做宾语：
ask,decide,discover,know,find out,learn,see,remember,forget,show somebody,want to know,tell somebody,wonder,understand,consider...
以how to do 的使用为例：
I don't know how to do it.
Mrs Clark was showing you how to do this.
I soon became a man and learned how to do it properly.
what to do:
I know what to do!
需要更多的例句的话,需要时间,可以探讨.