Grammar

The word 'under' describes the physical relationship or position of the girl relative to the tree. Words that show relationships of place, time, or direction are prepositions. It connects the noun 'tree' to the rest of the sentence.

The word 'well' describes the manner in which the action of singing is performed. It modifies the verb 'sings'. Words that provide information about how an action is done are adverbs.

The word 'sat' is the past tense of the verb 'sit'. it describes the action performed by the subject 'girl'. Verbs are essential parts of sentences that express actions or states.

The word 'sings' is an action verb that describes what the subject 'She' is doing. It is the main verb of the sentence. Verbs are used to describe actions, occurrences, or states of being.

The word 'wall' refers to a physical structure or object. Words that name objects, people, or places are nouns. In this sentence, it is the object of the preposition 'on'.

The word 'sun' names a specific celestial body. As it names a thing, it is classified as a noun. It functions as the subject of the sentence.

The word 'busy' describes a state or quality of the subject 'He'. Words that describe or modify nouns or pronouns are adjectives. Here, it follows a linking verb to provide information about the subject.

The word 'He' is a pronoun used to refer to a male person without naming them directly. Pronouns are used to make sentences less repetitive. It acts as the subject of the sentence.

The word 'sat' is an action verb in the past tense. It tells us what the subject, Humpty Dumpty, did. Verbs are the core of the predicate in a sentence.

The word 'on' indicates the spatial relationship between the subject 'Humpty Dumpty' and the 'wall.' It functions as a preposition by connecting the verb to a noun phrase.

The word 'fellow' refers to a person, making it a noun. In this sentence, it acts as a subject complement following the linking verb 'is' and the adjective 'busy.'

The word 'is' is a linking verb that connects the subject 'He' to the adjective 'busy.' It describes a state of being rather than a physical action.

The word 'wrote' is the past tense of the verb 'write,' which expresses a physical action. It describes what the subject 'girl' did in the sentence.

The word 'letter' is a noun because it names a specific object. It serves as the direct object of the action verb 'wrote' in this sentence.

The word 'big' is an adjective because it modifies the noun 'town' by describing its size. Adjectives provide additional details about the nouns they accompany.