Using the eight parts of speech once in one sentence is extremely tricky. If you are not thoroughly familiar with the eight parts of speech (noun, pronoun, verb, adjective, adverb, preposition, conjunction and interjection) and their functions, it is near impossible. However, it can be done: "Well, I left angrily because of several insults." This sentence is parsed as follows: interjection-pronoun-verb-adverb-conjunction-preposition-adjective-noun.

Learn the eight parts of speech and their functions and how to identify them. Each part of speech serves a different purpose in a sentence. For example, each sentence requires a noun and a verb. You cannot determine if you have used all eight parts of speech only once if you do not know how to recognize them.

Differentiate between transitive and intransitive verbs. Transitive verbs perform an action on an object, such as "She baked the cake." "Cake" is the object "bake" performs upon. An intransitive verb, such as in "She jumped," does not require an object. The verb "jumped" does not perform upon anything and therefore does not require an object. If you are having trouble not incorporating more than one noun in a sentence, use an intransitive verb, which does not require a noun object.

Decide on an interjection to use first that makes sense with your sentence. Generally interjections are used with dialogue, and not in formal writing, so your sentence will sound the most natural if it is something somebody would say in a conversation.

Play around with your sentence until you get it right. Creating a sentence that contains all the parts of speech only once might take you a few tries.