1) This is my car.   my is a possessive adjectives.  my is attribute. correct?

2) Your car is red, mine is blue.   mine is subject.   correct?

3) This book is his, not yours.  yours is predicative. correct?

4) I have my way, and she has hers.       she has hers = she has hers way.   hers is determiner.  hers way   complement.   it is the subject predicate structure. correct?   

5)  Is this Dave's shirt?  Dave's  is possessive adjectives.   Dave;s is attribute.   Dave's shirt is predicative. correct? 

6) Whose is that shirt? Is it your daughter's?    Is it your daughter's = Is it your daughter's shirt?       it is a master table structure.  your daughter's is predicative.   correct?