

Grammar


Tenses


Present

Present Simple

Present Continuous

Present Perfect

Present Perfect Continuous


Past

Past Simple

Past Continuous

Past Perfect

Past Perfect Continuous


Future

Future Simple

Future Continuous

Future Perfect

Future Perfect Continuous


Parts Of Speech


Nouns

Countable and uncountable nouns

Verbal nouns

Singular and Plural nouns

Proper nouns

Nouns gender

Nouns definition

Concrete nouns

Abstract nouns

Common nouns

Collective nouns

Definition Of Nouns

Animate and Inanimate nouns

Nouns


Verbs

Stative and dynamic verbs

Finite and nonfinite verbs

To be verbs

Transitive and intransitive verbs

Auxiliary verbs

Modal verbs

Regular and irregular verbs

Action verbs

Verbs


Adverbs

Relative adverbs

Interrogative adverbs

Adverbs of time

Adverbs of place

Adverbs of reason

Adverbs of quantity

Adverbs of manner

Adverbs of frequency

Adverbs of affirmation

Adverbs


Adjectives

Quantitative adjective

Proper adjective

Possessive adjective

Numeral adjective

Interrogative adjective

Distributive adjective

Descriptive adjective

Demonstrative adjective


Pronouns

Subject pronoun

Relative pronoun

Reflexive pronoun

Reciprocal pronoun

Possessive pronoun

Personal pronoun

Interrogative pronoun

Indefinite pronoun

Emphatic pronoun

Distributive pronoun

Demonstrative pronoun

Pronouns


Pre Position


Preposition by function

Time preposition

Reason preposition

Possession preposition

Place preposition

Phrases preposition

Origin preposition

Measure preposition

Direction preposition

Contrast preposition

Agent preposition


Preposition by construction

Simple preposition

Phrase preposition

Double preposition

Compound preposition

prepositions


Conjunctions

Subordinating conjunction

Correlative conjunction

Coordinating conjunction

Conjunctive adverbs

conjunctions


Interjections

Express calling interjection

Phrases

Sentences


Grammar Rules

Passive and Active

Preference

Requests and offers

wishes

Be used to

Some and any

Could have done

Describing people

Giving advices

Possession

Comparative and superlative

Giving Reason

Making Suggestions

Apologizing

Forming questions

Since and for

Directions

Obligation

Adverbials

invitation

Articles

Imaginary condition

Zero conditional

First conditional

Second conditional

Third conditional

Reported speech

Demonstratives

Determiners


Linguistics

Phonetics

Phonology

Linguistics fields

Syntax

Morphology

Semantics

pragmatics

History

Writing

Grammar

Phonetics and Phonology

Semiotics


Reading Comprehension

Elementary

Intermediate

Advanced


Teaching Methods

Teaching Strategies

Assessment
alternation (n.)
المؤلف:
David Crystal
المصدر:
A dictionary of linguistics and phonetics
الجزء والصفحة:
21-1
2023-05-16
1417
alternation (n.)
A term used in LINGUISTICS to refer to the relationship which exists between the alternative FORMS, or VARIANTS, of a linguistic UNIT. The usual symbol for alternation is ~. In PHONOLOGY, for example, the related VOWEL QUALITIES of such words as telegraph ~ telegraphic, receive ~ reception are sometimes described as alternants, as are the various ALLOPHONES of a PHONEME. The term has had particular currency in MORPHOLOGY, however, where ‘morphemic/morpheme alternant’ is another term for allomorph, and where various subtypes have been distinguished. For example, ‘phonologically conditioned alternants’ are illustrated in the various forms of the plural MORPHEME (/-S/, /-Z/, /-IZ/), which are predictable from the preceding phonological context (‘MORPHOPHONEMIC alternants’). ‘Grammatically conditioned alternants’ are cases where there is no such rationale, the occurrence of an alternant depending entirely on the particular morphemes which occur in its environment, as in the various forms of the past participle in English (frozen, jumped, etc.). SUPPLETION is another category of alternation, referring to a morpheme lacking any regular phonological correspondence with other forms in a PARADIGM, as in go ~ went. In SYNTAX, examples of sets of alternants can be seen in the various grammatical CATEGORIES, such as TENSE (e.g. present ~ past ~ future).
الاكثر قراءة في Phonology
اخر الاخبار
اخبار العتبة العباسية المقدسة
الآخبار الصحية

قسم الشؤون الفكرية يصدر كتاباً يوثق تاريخ السدانة في العتبة العباسية المقدسة
"المهمة".. إصدار قصصي يوثّق القصص الفائزة في مسابقة فتوى الدفاع المقدسة للقصة القصيرة
(نوافذ).. إصدار أدبي يوثق القصص الفائزة في مسابقة الإمام العسكري (عليه السلام)