Slides in Ads - then & now
There are three kinds of comparative structures:
1 - sentence connectors
2 - subordinating conjunctions
3 - correlative conjunctions
Join two independent clauses. Independent clauses contain a subject and a verb or verb phrase. Independent clauses are complete sentences.
Amy is always on time. (independent clause because it has a subject and a verb phrase)
Her sister is not (also an independent clause because it also has a subject and a verb phrase)
We can use a sentence connector to join these two independent clauses.
Amy is always on time, however, her sister is not.
Amy is always on time while her sister is not.
When a subordinating conjunction joins two clauses it creates a main clause, Amy is always on time, and a subordinate clause, while her sister is not. A subordinate clause is a dependent clause or an incomplete thought. A dependent clause can not stand alone. It is not a complete sentence. For example, her sister is not, is an incomplete thought and does not mean anything on it's own.
While Amy is always on time, her sister is not.
useful for discussing similarities
used to discuss two things that are true
Both Amy and her brother are always on time
Neither Amy nor her brother are late for meetings