HOW TO TYPE= W-H STRUCTURE

1. OBJECT:
                      I don't know   HOW TO TYPE.
                      They teach     HOW TO TYPE.
2. SUBJECT:
                     HOW TO TYPE  is   what I don't know.    
                               HOW TO TYPE  is   what they teach.       
                                               (What do they teach? )
3. COMPLEMENT:
                     They teach me.
                     They teach me  HOW TO TYPE.
                     They asked me WHAT TO TYPE.
                     They wonder    HOW FAST and WHY TO TYPE.