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English grammar is the way in which meanings are encoded into wordings in the English language. This includes the structure of words, phrases, clauses, sentences, and whole texts. This article describes a generalized, present-day Standard English – a form of speech and writing used in public discourse, including broadcasting, education, entertainment, government, and news, over a range of registers, from formal to informal. Divergences from the grammar described here occur in some historical, social, cultural and regional varieties of English, although these are more minor than differences in pronunciation and vocabulary.
Modern English has largely abandoned the inflectional case system of Indo-European in favor of analytic constructions. The personal pronouns retain morphological case more strongly than any other word class (a remnant of the more extensive Germanic case system of Old English). For other pronouns, and all nouns, adjectives, and articles, grammatical function is indicated only by word order, by prepositions, and by the "Saxon genitive or English possessive" . Eight "word classes" or "parts of speech" are commonly distinguished in English: nouns, determiners, pronouns, verbs, adjectives, adverbs, prepositions, and conjunctions. Nouns form the largest word class, and verbs the second-largest. Unlike nouns in almost all other Indo-European languages, English nouns do not have grammatical gender.
English adjectives, as with other word classes, cannot in general be identified as such by their form, although many of them are formed from nouns or other words by the addition of a suffix, such as -al (habitual), -ful (blissful), -ic (atomic), -ish (impish, youngish), -ous (hazardous), etc.; or from other adjectives using a prefix: disloyal, irredeemable, unforeseen, overtired. Adjectives may be used attributively, as part of a noun phrase (nearly always preceding the noun they modify; for exceptions see postpositive adjective), as in the big house, or predicatively, as in the house is big. Certain adjectives are restricted to one or other use; for example, drunken is attributive (a drunken sailor), while drunk is usually predicative (the sailor was drunk).
Many common suffixes form nouns from other nouns or from other types of words, such as -age (as in shrinkage), -hood (as in sisterhood), and so on, although many nouns are base forms not containing any such suffix (such as cat, grass, France). Nouns are also often created by conversion of verbs or adjectives, as with the words talk and reading (a boring talk, the assigned reading). Nouns are sometimes classified semantically (by their meanings) as proper nouns and common nouns (Cyrus, China vs. frog, milk) or as concrete nouns and abstract nouns (book, laptop vs. embarrassment, prejudice). A grammatical distinction is often made between count (countable) nouns such as clock and city, and non-count (uncountable) nouns such as milk and decor. Some nouns can function both as countable and as uncountable such as the word "wine" (This is a good wine, I prefer red wine). Countable nouns generally have singular and plural forms. In most cases the plural is formed from the singular by adding -[e]s (as in dogs, bushes), although there are also irregular forms (woman/women, foot/feet, etc.), including cases where the two forms are identical (sheep, series). For more details, see English plural. Certain nouns can be used with plural verbs even though they are singular in form, as in The government were ... (where the government is considered to refer to the people constituting the government). This is a form of synesis; it is more common in British than American English. See English plural § Singulars with collective meaning treated as plural. English nouns are not marked for case as they are in some languages, but they have possessive forms, through the addition of -'s (as in John's, children's) or just an apostrophe (with no change in pronunciation) in the case of -[e]s plurals and sometimes other words ending with -s (the dogs' owners, Jesus' love). More generally, the ending can be applied to noun phrases (as in the man you saw yesterday's sister); see below. The possessive form can be used either as a determiner (John's cat) or as a noun phrase (John's is the one next to Jane's). The status of the possessive as an affix or a clitic is the subject of debate. It differs from the noun inflection of languages such as German, in that the genitive ending may attach to the last word of the phrase. To account for this, the possessive can be analysed, for instance as a clitic construction (an "enclitic postposition") or as an inflection of the last word of a phrase ("edge inflection").
Noun phrases are phrases that function grammatically as nouns within sentences, for example as the subject or object of a verb. Most noun phrases have a noun as their head. An English noun phrase typically takes the following form (not all elements need be present): DETERMINER + PRE-MODIFIERS + NOUN + POST MODIFIERS/COMPLEMENT
In this structure:
Conjunctions express a variety of logical relations between items, phrases, clauses and sentences. The principal coordinating conjunctions in English are: and, or, but, nor, so, yet, and for. These can be used in many grammatical contexts to link two or more items of equal grammatical status, for example:
Prepositions form a closed word class, although there are also certain phrases that serve as prepositions, such as in front of. A single preposition may have a variety of meanings, often including temporal, spatial and abstract. Many words that are prepositions can also serve as adverbs. Examples of common English prepositions (including phrasal instances) are of, in, on, over, under, to, from, with, in front of, behind, opposite, by, before, after, during, through, in spite of or despite, between, among, etc. A preposition is usually used with a noun phrase as its complement. A preposition together with its complement is called a prepositional phrase. Examples are in England, under the table, after six pleasant weeks, between the land and the sea. A prepositional phrase can be used as a complement or post-modifier of a noun in a noun phrase, as in the man in the car, the start of the fight; as a complement of a verb or adjective, as in deal with the problem, proud of oneself; or generally as an adverb phrase (see above). English allows the use of "stranded" prepositions. This can occur in interrogative and relative clauses, where the interrogative or relative pronoun that is the preposition's complement is moved to the start (fronted), leaving the preposition in place. This kind of structure is avoided in some kinds of formal English. For example:
The basic form of an English verb is not generally marked by any ending, although there are certain suffixes that are frequently used to form verbs, such as -ate (formulate), -fy (electrify), and -ise/ize (realise/realize). Many verbs also contain prefixes, such as un- (unmask), out- (outlast), over- (overtake), and under- (undervalue). Verbs can also be formed from nouns and adjectives by zero derivation, as with the verbs snare, nose, dry, and calm. Most verbs have three or four inflected forms in addition to the base form: a third-person singular present tense form in -(e)s (writes, botches), a present participle and gerund form in -ing (writing), a past tense (wrote), and – though often identical to the past tense form – a past participle (written). Regular verbs have identical past tense and past participle forms in -ed, but there are 100 or so irregular English verbs with different forms (see list). The verbs have, do and say also have irregular third-person present tense forms (has, does /dʌz/, says /sɛz/). The verb be has the largest number of irregular forms (am, is, are in the present tense, was, were in the past tense, been for the past participle). Most of what are often referred to as verb tenses (or sometimes aspects) in English are formed using auxiliary verbs. Apart from what are called the simple present (write, writes) and simple past (wrote), there are also continuous (progressive) forms (am/is/are/was/were writing), perfect forms (have/has/had written, and the perfect continuous have/has/had been writing), future forms (will write, will be writing, will have written, will have been writing), and conditionals (also called "future in the past") with would in place of will. The auxiliaries shall and should sometimes replace will and would in the first person. For the uses of these various verb forms, see English verbs and English clause syntax. The basic form of an English verb is not generally marked by any ending, although there are certain suffixes that are frequently used to form verbs, such as -ate (formulate), -fy (electrify), and -ise/ize (realise/realize). Many verbs also contain prefixes, such as un- (unmask), out- (outlast), over- (overtake), and under- (undervalue).Verbs can also be formed from nouns and adjectives by zero derivation, as with the verbs snare, nose, dry, and calm. Most verbs have three or four inflected forms in addition to the base form: a third-person singular present tense form in -(e)s (writes, botches), a present participle and gerund form in -ing (writing), a past tense (wrote), and – though often identical to the past tense form – a past participle (written). Regular verbs have identical past tense and past participle forms in -ed, but there are 100 or so irregular English verbs with different forms (see list). The verbs have, do and say also have irregular third-person present tense forms (has, does /dʌz/, says /sɛz/). The verb be has the largest number of irregular forms (am, is, are in the present tense, was, were in the past tense, been for the past participle). Most of what are often referred to as verb tenses (or sometimes aspects) in English are formed using auxiliary verbs. Apart from what are called the simple present (write, writes) and simple past (wrote), there are also continuous (progressive) forms (am/is/are/was/were writing), perfect forms (have/has/had written, and the perfect continuous have/has/had been writing), future forms (will write, will be writing, will have written, will have been writing), and conditionals (also called "future in the past") with would in place of will. The auxiliaries shall and should sometimes replace will and would in the first person. For the uses of these various verb forms, see English verbs and English clause syntax.
Adverbs perform a wide range of functions. They typically modify verbs (or verb phrases), adjectives (or adjectival phrases), or other adverbs (or adverbial phrases). However, adverbs also sometimes qualify noun phrases (only the boss; quite a lovely place), pronouns and determiners (almost all), prepositional phrases (halfway through the movie), or whole sentences, to provide contextual comment or indicate an attitude (Frankly, I don't believe you). They can also indicate a relationship between clauses or sentences (He died, and consequently I inherited the estate). Many English adverbs are formed from adjectives by adding the ending -ly, as in hopefully, widely, theoretically (for details of spelling and etymology, see -ly). Certain words can be used as both adjectives and adverbs, such as fast, straight, and hard; these are flat adverbs. In earlier usage more flat adverbs were accepted in formal usage; many of these survive in idioms and colloquially. (That's just plain ugly.) Some adjectives can also be used as flat adverbs when they actually describe the subject. (The streaker ran naked, not **The streaker ran nakedly.) The adverb corresponding to the adjective good is well (note that bad forms the regular badly, although ill is occasionally used in some phrases). There are also many adverbs that are not derived from adjectives, including adverbs of time, of frequency, of place, of degree and with other meanings. Some suffixes that are commonly used to form adverbs from nouns are -ward[s] (as in homeward[s]) and -wise (as in lengthwise).
Most adverbs form comparatives and superlatives by modification with more and most: often, more often, most often; smoothly, more smoothly, most smoothly (see also comparison of adjectives, above). However, a few adverbs retain irregular inflection for comparative and superlative forms: much, more, most; a little, less, least; well, better, best; badly, worse, worst; far, further (farther), furthest (farthest); or follow the regular adjectival inflection: fast, faster, fastest; soon, sooner, soonest; etc. Adverbs indicating the manner of an action are generally placed after the verb and its objects (We considered the proposal carefully), although other positions are often possible (We carefully considered the proposal). Many adverbs of frequency, degree, certainty, etc. (such as often, always, almost, probably, and various others such as just) tend to be placed before the verb (they usually have chips), although if there is an auxiliary or other "special verb" (see § Verbs above), then the normal position for such adverbs is after that special verb (or after the first of them, if there is more than one): I have just finished the crossword; She can usually manage a pint; We are never late; You might possibly have been unconscious. Adverbs that provide a connection with previous information (such as next, then, however), and those that provide the context (such as time or place) for a sentence, are typically placed at the start of the sentence: Yesterday we went on a shopping expedition. If the verb has an object, the adverb comes after the object (He finished the test quickly). When there is more than one types of adverb, they usually appear in the order: manner, place, time (His arm was hurt severely at home yesterday). A special type of adverb is the adverbial particle used to form phrasal verbs (such as up in pick up, on in get on, etc.) If such a verb also has an object, then the particle may precede or follow the object, although it will normally follow the object if the object is a pronoun (pick the pen up or pick up the pen, but pick it up).
Nouns, verbs, adjectives, and adverbs form open classes – word classes that readily accept new members, such as the noun celebutante (a celebrity who frequents the fashion circles), and other similar relatively new words. The others are considered to be closed classes. For example, it is rare for a new pronoun to enter the language. Determiners, traditionally classified along with adjectives, have not always been regarded as a separate part of speech. Interjections are another word class, but these are not described here as they do not form part of the clause and sentence structure of the language. Linguists generally accept nine English word classes: nouns, verbs, adjectives, adverbs, pronouns, prepositions, conjunctions, determiners, and exclamations. English words are not generally marked for word class. It is not usually possible to tell from the form of a word which class it belongs to except, to some extent, in the case of words with inflectional endings or derivational suffixes. On the other hand, most words belong to more than one-word class. For example, run can serve as either a verb or a noun (these are regarded as two different lexemes). Lexemes may be inflected to express different grammatical categories. The lexeme run has the forms runs, ran, runny, runner, and running. Words in one class can sometimes be derived from those in another. This has the potential to give rise to new words. The noun aerobics has recently given rise to the adjective aerobicized.