How to + infinitive verb + (object) =the mannar or way in which=noun(can be used in subject and object)
I don't know how to do this.
How to do this is a thing that everybody wants to know.
You should learn how to speak English.
I have already known how to walk.
I have known how to record.
How subject+verb+object=about the mannar,condition, or way in which=noun (can be used in subject and object)
I don't care how she makes this.
I want to know how you go to London.
How does she make this? (Question)
How she makes this (noun) is important to my dicision.
How do you go to London? (Question)
How you go to London (noun) depends on your sweetheart.
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