In the beginning of scene 3, the Porter pretends to let people who have done wrong things for personal gain into the gates of "hell". What is the purpose of the porter in Act 2?

The goal of the porter is to serve as an alert to the reader that something terrible is going to happen in the castle.

Explanation:

When the porter refers to hell, he warns the reader that something big and so terrible is going to happen that can be compared to hell and all the wickedness and agony that this place symbolizes. This situation is the murder of the king in cold blood and the ususpation and persecution that the murderer will provoke, as well as all the mental lack of control and emotional exhaustion that will be presented during the narrative.

sentences vary by structure as well as by function. there are compound, complex, and compound-complex sentences.

simple sentence

i like to read.

a simple sentence has one independent clause.

compound sentence

i like to read, and i also like to write.

a compound sentence includes more than one independent clause, connected by a coordinating conjunction (and, but, for, nor, or, so, or yet).

complex sentence

i prefer to read books that are bestsellers.

a complex sentence includes one independent clause and one or more dependent clauses. (a dependent clause is one that cannot stand alone.) types of dependent clauses include relative clauses (i kicked the boy who pinched me), adverb clauses (i am going home now because i have a curfew), and noun clauses (i don't know what to do next).

compound-complex sentence

although i prefer to read current bestsellers, i do like to read old agatha christie mysteries, and i also like some 20th-century science fiction.

compound-complex sentences take a bunch of clauses (multiple independent clauses, and one or more dependent clauses) and toss them together like a salad. although these sentences take practice to write in a grammatically correct fashion, they can hold a tremendous amount of meaning, and are common in academic writing.

with what words? i dont see them