Question

split the sentences into subject and predicate,and further label as attribute,object,complementary,adverbial qualification,and so on. 1)thy eternal summer shall not fade. 2)you are like a summer's day. 3)so long as men can hear and eyes can see,this sonnet shall give life to thee. 4)the poet establishes the smile in the first quatrain.

Answer 1

predicates are the parts of sentences, other than the subject.  There are attribute, object, complementary and adverbial predicates -- which we need to identify in the following:

 
Thy  eternal summer  shall not fade.
     Thy eternal summer --- subject  :     attributive expression
             :  eternal is attributive adjective
       shall not fade - predicate      : complementary predicate
               shall is auxiliary verb.  fade main verb.

======
You are like a summer's day.
    subject : You
   predicate :  are like a summer's day   
                  like a summer's day:     adverbial qualification ?

=========
So long as men can hear and eyes can see, this sonnet shall give life to thee.
   this is a compound sentence.

     subject -- so long as men    
             so long as  ---
     predicate :  can hear      -- 

     subject :  eyes
     predicate :  can see  --

       this sonnet    -  subject
       shall give life to thee  -  predicate        -- 
                   life -      object of the verb  give

=======
The poet establishes the smile in the first quatrain.
   The poet  - subject
   predicate :    establishes the smile in the first quatrain.
               the smile  - object  of the verb  establishes.
               in the first quatrain -- prepositional phrase

Answer 2

Answer:

thy summer is eternal. it shall not fade