The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures.The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done with phrases, i. e., noun phrases, verb phrases, prepositional phrases, and so on. Most sentences in English can be diagrammed using the phrase tree. Examine the following basic structures. The use of language is limitless. The phrase structure rules do not limit the structures but rather make possible all the grammatical combinations that can be done .