Grammar

'Alas!' is an interjection - a word or phrase that expresses sudden emotion, feeling, or surprise. Interjections are grammatically independent and can stand alone, often followed by an exclamation mark. Common examples include oh, wow, ouch, and alas. Nouns name things, verbs show action, and pronouns replace nouns - none of which apply here.

In the phrase 'round the corner,' the word 'round' functions as a preposition indicating position or location. Prepositions show relationships between words, often indicating place, time, or direction. Here it tells us where the shop is located. When 'round' means 'circular in shape,' it's an adjective, but in this spatial context, it's a preposition.

In the phrase 'This book is mine,' the word 'This' is functioning as a demonstrative adjective. Demonstrative adjectives modify nouns and point out specific items (this, that, these, those). Here 'this' modifies 'book' to specify which book is being discussed. While 'this' can also be a pronoun (standing alone), when it appears before a noun, it functions as an adjective.

In 'The circle is round,' the word 'round' functions as an adjective because it describes the quality or shape of the noun 'circle.' Adjectives modify nouns by providing descriptive information about characteristics such as shape, size, color, or appearance. Here 'round' tells us what the circle looks like - its shape.

In the phrase 'She is very clever,' the word 'very' is an adverb because it modifies the adjective 'clever.' Adverbs modify verbs, adjectives, or other adverbs, often answering 'how,' 'when,' 'where,' or 'to what extent.' Here 'very' intensifies 'clever,' telling us to what extent she is clever. This is a common use of 'very' as an adverb of degree.

In 'The round figure is circle,' the word 'round' functions as an adjective modifying the noun 'figure.' It describes the shape of the figure, telling us it is circular. Adjectives that describe shape include round, square, triangular, etc. Here 'round' specifies what kind of figure is being discussed - a circular one.

In 'Did he come round?', the word 'round' functions as an adverb modifying the verb 'come.' Here it means 'to this place' or 'here,' indicating direction or movement toward the speaker. This is a British English usage where 'round' can mean 'in this direction.' Adverbs modifying verbs often tell where, when, or how an action happened.

'Ha!' is an interjection because it expresses sudden emotion or surprise. Interjections are words that stand alone to show feelings like joy, shock, or excitement. They don't follow grammatical rules like other parts of speech.

'He' is a pronoun because it replaces a noun (a male person). Pronouns are used instead of repeating names or nouns. Common pronouns include I, you, he, she, it, we, and they.

'Come' is a verb because it shows an action. Verbs describe what someone does or what happens. It's the action word in the sentence describing movement.

'Is coming' is a verb phrase because it describes an action happening now. The helping verb 'is' combined with 'coming' forms the present continuous tense. Verbs show actions or states of being.

'I' is a pronoun because it refers to the speaker. Pronouns replace specific nouns to avoid repetition. 'I' is a first-person singular pronoun used when referring to oneself.

'Electric' is an adjective because it describes the noun 'train'. Adjectives modify or describe nouns by answering 'what kind'. It tells us what type of train is being discussed.

'To' is a preposition because it shows the relationship between 'went' and 'Madras'. Prepositions connect nouns or pronouns to other words in a sentence, often showing direction, location, or time.

'Went' is a verb because it describes an action (the past tense of 'go'). Verbs are action words that tell what someone did. It's the main action in the sentence.