please explain compound subjects and compound predicates.

These two sites give good examples and explanations of compound subjects and predicates.

http://ace.acadiau.ca/english/grammar/gsubpred.htm

http://209.85.165.104/search?q=cache:U6taU1HSidYJ:classroom.jc-schools.net/la/activities/SubjPred.ppt+compound+subjects+and+predicates&hl=en&ct=clnk&cd=1&gl=us&ie=UTF-8

Compound subjects have two or more subjects.

Examples:

Larry and Jerry are twin brothers.
TVs, computers, and cell phones were invented in the twentieth century.

Compound predicates have two or more verbs.

Examples (the simple predicates are underlined):

The children came home and immediately did their homework.

A durian smells terrible but tastes delicious.

Check this site for more information.

http://ace.acadiau.ca/english/grammar/gsubpred.htm

Compound subjects and compound predicates are used to add complexity and variety to sentences. Let's start by understanding each concept separately:

Compound Subjects:
A subject is the part of a sentence that performs the action or is being described. A compound subject is formed when two or more subjects share the same verb or are connected by a coordinating conjunction (usually "and," "or," or "nor").

To identify a compound subject, you can use the following steps:
1. Look for a sentence with multiple nouns or pronouns.
2. Check if these nouns or pronouns share the same verb or are connected using a coordinating conjunction.
3. If they do, you have a compound subject.

For example:
- "John and Sarah went to the park." In this sentence, "John" and "Sarah" are the two subjects that share the verb "went."

Compound Predicates:
A predicate is the part of a sentence that provides information about the subject, usually consisting of a verb and additional components such as objects, complements, or modifiers. A compound predicate occurs when a subject has two or more verbs or verb phrases connected by a coordinating conjunction.

To identify a compound predicate, follow these steps:
1. Find a sentence with a subject and two or more verbs or verb phrases.
2. Check if these verbs or verb phrases are connected using a coordinating conjunction.
3. If they are, you have a compound predicate.

For example:
- "She sings and dances beautifully." In this sentence, the subject "She" is connected to the verbs "sings" and "dances" by the coordinating conjunction "and."

In summary, a compound subject is when two or more subjects share the same verb or are connected by a coordinating conjunction, while a compound predicate is when a subject has two or more verbs or verb phrases connected by a coordinating conjunction.