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