Identifying Compound Subjects and Predicates in a Sentence
An easy way to recognize a compound subject in a sentence is to look for more than one subject. For example, in this sentence:
Lindsay and Britney went shopping.
Both Lindsay and Britney are the compound subjects because there is more than one subject as opposed to the sentence “Lindsay went shopping" which only involves one subject (Lindsay).
A compound predicate can be identified when the subject does two things. There are usually two identifying verbs which will also be found in a compound predicate. An example is in the sentence:
I ate a pie and drank a milkshake.
In this sentence “I" is the subject, and “ate" and “drank" are the two identifying verbs which make this sentence a compound predicate.
Things become a bit more complex when we are introduced to a sentence that has both a compound subject and a compound predicate:
Elizabeth and Victoria caught a fish and then cooked it.
In this sentence "Elizabeth and Victoria" are the compound subjects, while the compound predicate is "caught" and "cooked". This is an example of a sentence that has both compound subjects and compound predicates.
You may notice that although some sentences which feature compound sentences and compound predicates may look slightly different with a varied word order, many of these sentences follow the same structure.
Compound sentences, are just one of four sentence types in the English language; it may help your understanding of compound subjects and predicates further if you review the other types of sentences, so you can see the differences more clearly.