Grammar Rules

Rule #1:

A noun is a person, place, thing or idea. A verb is an action word.

Example: The bird flew.

Rule #2:

A complete sentence must include a subject and a predicate.

Example: The angry bird flew quickly across the sky.

Rule #3:

The only exception to the above rules is the imperative sentence by a verb.

Example: Go away!

Rule #4:

Adjectives can go directly before the noun they describe, or after it, if separated by a verb.


  1. The angry bird flew.
  2. The bird is angry.

Rule #5:

A compound subject includes two or more simple subjects.

Example: The bird and the plane flew.

Rule #6:

A compound predicate includes tw0 or more predicates.

Example: The bird flew and sang.

Rule #7:

A compound sentence includes more than one subject or predicate.

Example: The bird sang and the plane flew.

Rule #8: 

An independent clause consists of a subject and a predicate, like a complete sentence.

Example: The plane flew.

Rule #9:

A dependent clause cannot form a complete sentence without additional words.

Example: The plane flew when the bird sang.

Rule #10:

The direct object is the noun being acted on by the verb.

Example: The bird ate seeds.

Rule #11:

The indirect object is the noun which receives the direct object.

Example: The bird gave the seeds to me.

Rule #12:

When written in passive voice, the object of the verb becomes the subject of the sentence.


  1. The bird ate seeds.
  2. The seeds were eaten by the bird.

Rule #13:

Conjugations of the verb to be are essential to passive voice.

Example: The seeds are being eaten by the bird.

Rule #14:

Sentences written in passive voice can omit the subject of the acting verb.

Example: The seeds were eaten.

Rule #15:

In passive voice, the subject of the acting verb is connected by a prepositional phrase.

Example: The bird ate seeds after lunchtime.

Rule #16:

Prepositional phrases are sometimes separated by commas.

Example: The bird, which belonged to my mother, ate seeds.

Rule #17:

Adverbs function like prepositions.

Example: The bird ate seeds quickly.

Rule #18:

A subject complement describes the subject of the sentence.

Example: The bird is green.

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