The article English Modal Verbs lists and explains the nine modal verbs in English—can, could, may, might, must, shall, should, will, would—and discusses some of the possible definitions and meanings of these modals.

The article Modal Auxiliary Verbs: The Grammar of Modal Verbs in English explains and provides examples of the grammar of the nine English modal verbs.

The article English Quasi-modal Verbs lists and explains the four quasi-modal verbs in English—ought to, used to, would rather, had better—and discusses some of the possible definitions and meanings of these quasi-modals.

The article English Catenative Verbs explains the conjugations and uses of catenatives as well as the difference between catenative verbs—verbs that form strings of verbs by linking to the infinitive form of another verb—and modal or quasi-modal verbs.

Modal Verb Meanings

The article Semantics and Pragmatics of English Modal Verbs: The Meanings and Uses of Modal Auxiliary Verbs in English offers the most common semantic and pragmatic meanings of the nine English modal verbs.

The article English Modal Verbs: Can and May offers the most frequent definitions of the modals can and may with examples to illustrate use.

The article English Modal Verbs: Will and Shall offers the most frequent definitions of the modals will and shall with examples to illustrate use.

The article English Modal Verbs: Could and Might offers the most frequent definitions of the modals could and might with examples to illustrate use.

The article English Modal Verbs: Would offers the most frequent definitions of the modal would with examples to illustrate use.

The article English Modal Verbs: Must and Should offers the most frequent definitions of the modals must and should with examples to illustrate use.

Multiple Modals

The essay Multiple Modals in Modern English: Use, History, and Structure of Periphrastic Modal Verbs explains the structure, users, history, and pragmatics of multiple modals— periphrastic verb constructions characterized by the use of two or more modal verbs within a single verb phrase—in Modern English.

The article The Internal Structure of Verb Phrases in English explains and exemplifies the five grammatical forms that appear with verbs to form English verb phrases.

The article The Functions of Prepositions in Verb Phrases: Infinitive Markers, Particles, and Verb Phrase Complements explains the three functions of prepositions within English verb phrases.

Verb Phrase Functions

The article The Functions of Verbs and Verb Phrases in English explains and describes the ten grammatical functions—four verbal and six nominal—of verb phrases in English grammar.

The article English Verbs and Verb Phrases: Five Functions of Verb in the English Language explains five grammatical functions—predicate, noun phrase modifier, adjective phrase complement, subject, subject complement—of verb phrases in English grammar.

The article More English Verbs and Verb Phrases: Four More Functions of Verbs in the English Language explains four grammatical functions—direct object, object complement, indirect object, prepositional complement—of verb phrases in English grammar.

The article Verb Functions in Predicate Verb Phrases: Grammatical Functions of Modals, Auxiliaries, and Operators explains the six functions of verbs including auxiliary within the English predicate.

The article English Adverbials: Noun Phrases, Verb Phrases, and the Positions of Adverbials explains the use of verb phrases as adverbials in English.

English Verb System

The article The English Verb System for ESL Students presents an overview of the English verb system including verb tense, verb aspect, verb mood, and verb voice.

The article Common English Verbs lists along with conjugations the thirty-two most important verbs that English language learners should memorize early in their English language studies including the three English auxiliary verbs, the nine English modal verbs, and the twenty most frequent English verbs.

The article English Catenative Verbs explains the conjugations and uses of catenatives as well as the differences between catenative verbs and modal or quasi-modal verbs.

Simple Present Tense

As described in the article Forming the Simple Present Tense of English Verbs: Spelling Changes and Pronunciation, the simple present tense in English expresses habits and routines, to state general facts and truths, and to express thoughts and feelings.

The article Third Person Singular Simple Present Verbs: Suffixation of Present Tense Verbs in the English Language explains how to form and pronounce the third person singular form of English nouns in the simple present tense.

Simple Past Tense

As described in the article Forming the Simple Past Tense of English Verbs: Spelling Changes and Pronunciation, the simple past tense in English expresses completed actions, to describe past habits and routines, to state past facts and truths, and to express past thoughts and feelings.

Progressive Aspect

As described in the article The Formation and Use of the Progressive Aspect in English, the progressive aspect of verb phrases expresses ongoing actions or states.

Perfect Aspect

As described in the article The Formation and Use of the Perfect Aspect in English, the perfect aspect of verb phrases expresses and emphasizes the consequences resulting from past actions or states.

Perfect-Progressive Aspect

As described in the article The Formation and Use of the Perfect-Progressive Aspect in English, the perfect-progressive aspect of verb phrases expresses ongoing actions or states that began in the past and continue to a specific time.

Present Participles

As described in the article Forming the Present Participle of English Verbs: Spelling Changes and Pronunciation, the present participle in English is a nonfinite verb form used to form the progressive aspect and perfect-progressive aspect as well as in nominal functions.

The article Forming Present Participles of English Verbs: Suffix Affixation to Base Forms to Create English -ing Participles explains how to form and use present participles of English verbs.

Past Participles

As described in the article Forming the Past Participle of English Verbs: Spelling Changes and Pronunciation, the past participle in English is a nonfinite verb form used to form the perfect aspect, perfect-progressive aspect, and passive voice as well as to modify noun phrases.

The article Past Participles of Regular English Verbs: Suffix Affixation to Base Forms to Create English -en Participles explains how to form and use past participles of regular English verbs.

The article Past Participles of Irregular English Verbs: Suffixation and Stem Changes to Create English -en Participles explains how to form and use past participles of irregular English verbs.

Passive Voice

As described in the article The Formation and Use of the Passive Voice in English, the passive voice of verb phrases moves the direct object of the verb into the grammatical subject position.

Subjunctive Mood

The article The Formation and Use of the Subjunctive Mood in English explains the formation, use, and decline of the subjunctive mood in English grammar.

Imperative Mood

The article Lesson Plan for Teaching the Imperative Mood in Spanish includes a discussion of the formation and use of the imperative mood in English grammar.

Modal Verbs

The article English Modal Verbs lists and defines the nine modal verbs in English as well as explains the position and use of modal verbs in English verb phrases.

For some of the most frequent meanings of the nine English modal verbs, read the series of five articles entitled Semantics and Pragmatics of English Modal Verbs which includes the articles English Modal Verbs: Can and May, English Modal Verbs: Will and Shall, English Modal Verbs: Could and Might, English Modal Verbs: Would, and English Modal Verbs: Must and Should.

The five-part essay Multiple Modals in Modern English: Use, History, and Structure of Periphrastic Modal Verbs explores the use, history, and structure of multiple modals in the English language.

The article English Quasi-modal Verbs lists and defines the four quasi-modal verbs in English as well as explains the position and use of quasi-modal verbs in English verb phrases.

Prepositional Verbs

The article ESL Lesson Plan for Teaching the Difference between Prepositional Verbs and Phrasal Verbs compares English prepositional verbs to English phrasal verbs.

The article Prepositional Verbs and Verb Phrase Complements: The Difference between Prepositional and Phrasal Verbs in English explains the differences between English prepositional verbs and English phrasal verbs.

Phrasal Verbs

The article English Phrasal Verbs for ESL Students explains and describes the forms of phrasal verbs in English.

The article ESL Lesson Plan for Teaching the Difference between Prepositional Verbs and Phrasal Verbs explains the difference between phrasal verbs and prepositional verbs in English.

The article Prepositional Verbs and Verb Phrase Complements: The Difference between Prepositional and Phrasal Verbs in English explains the differences between English phrasal verbs and English prepositional verbs.

The essay Phrasal Verbs: The Elephant Is a Whole, Not Its Parts is an academic essay that explains the forms of phrasal verbs in English.

The article English Phrasal Verbs: The Form, Origin, and Types of Phrasal Verbs in the English Language explains the form and origin as well as the four types of phrasal verbs in English.

The article Transitive Phrasal Verbs in English: Nonseparable, Optionally Separable, and Obligatorily Separable explains the three types of transitive phrasal verbs in English.