What is the grammatical sentence structure in English?What is adverb,adjective,preposition and etc's structure in English?

If you supply some sentences, it would be easier to explain the sentence structure to you. As you read, note the sentence structure, especially between a statement and a question.

Straight word order is usually:
the subject + the verb + additional information.

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The grammatical sentence structure in English typically follows a subject-verb-object pattern. This means that a sentence usually consists of a subject (who or what the sentence is about), a verb (the action or state of being), and an object (the recipient of the action). For example, in the sentence "I ate an apple," "I" is the subject, "ate" is the verb, and "an apple" is the object.

Now, let's talk about the structure of some specific parts of speech:

1. Adverb: An adverb is a word that modifies a verb, adjective, or another adverb. Adverbs usually provide information about how, when, where, or to what extent an action is performed. For example, in the sentence "She runs quickly," the adverb "quickly" modifies the verb "runs."

2. Adjective: An adjective is a word that describes or gives more information about a noun or pronoun. Adjectives can provide details about the size, shape, color, age, or other qualities of a noun. For example, in the sentence "He is a tall man," the adjective "tall" describes the noun "man."

3. Preposition: A preposition is a word that shows the relationship between a noun or pronoun and another word in the sentence. Prepositions are often used to indicate location, time, direction, or other relationships. For example, in the sentence "She is sitting on the chair," the preposition "on" shows the relationship between the verb "sitting" and the noun "chair."

It's important to note that each part of speech can have a different structure depending on its role and usage in a sentence. You can further explore grammar books, online resources, or take language lessons to dive into more detailed explanations and examples.