Final answer:
A compound sentence example is 'I tried to speak Spanish, and my friend tried to speak English, so we could understand each other better.' A complex sentence example is 'Because my friend speaks fluent French, I take lessons to better communicate with her when we travel.' These sentences illustrate how to express multiple ideas using different clause structures.
Step-by-step explanation:
To demonstrate the proper construction of sentences, let's begin with creating a compound sentence and a complex sentence. A compound sentence consists of two independent clauses usually joined by a coordinating conjunction, while a complex sentence consists of one independent clause and one or more dependent clauses.
Compound Sentence Example: I tried to speak Spanish, and my friend tried to speak English, so we could understand each other better.
Complex Sentence Example: Because my friend speaks fluent French, I take lessons to better communicate with her when we travel.
These examples illustrate both structures, and each employs different types of clauses to convey more than one idea. The compound sentence uses 'and' and 'so', which are coordinating conjunctions joined by a comma, whereas the complex sentence uses 'because', which begins the subordinate clause.