The verb organizes the action, state, or process expressed in the sentence and agrees with the subject in person and number. In Portuguese, it can also require a direct object, indirect object, or none, depending on government. Additionally, the verb appears in finite and non-finite forms, which allow constructing simple sentences and verbal phrases.

The direct transitive verb takes a complement without a preposition, as happens with Transitive and Intransitive verbs. The indirect transitive verb requires a preposition before the complement. The intransitive verb does not require a verbal complement to complete the meaning.

IdeiaIdea	ExemploExample
Verbo transitivo diretoDirect transitive verb	Eu amo a música.I love the music.
Verbo transitivo indiretoIndirect transitive verb	Eu gosto de café.I like coffee.
Verbo intransitivoIntransitive verb	Ela chegou cedo.She arrived early.

Pronominal verbs appear with an unstressed pronoun and tend to form a fixed unit of meaning. In forms such as levantar-se and lembrar-se, the pronoun is part of the verbal construction and does not function as a regular object. This behavior relates to the study of Transitive and Intransitive verbs, because the presence of the pronoun alters the structure of the verb.

IdeiaIdea	ExemploExample
Verbo pronominalPronominal verb	Ele se levantou cedo.He got up early.
Verbo reflexivoReflexive verb	Ela se lembrou do nome.She remembered the name.
Pronome obrigatórioMandatory pronoun	O verbo se apresenta com pronome.The verb comes with a pronoun.

Regular verbs ending in -ar follow a stable pattern in the present indicative. The personal ending changes, but the stem remains the same throughout the entire conjugation. The verb falar is the most frequent model of this group and helps recognize the entire family of forms.

PessoaPerson	VerboVerb	ExemploExample
EuI	faloI say	Eu falo com calma.I speak calmly.
TuYou	falasyou speak	Tu falas devagar.You speak slowly.
Ele elaHe/she	falaHe/she says	Ela fala muito bem.She speaks very well.
NósWe	falamosWe speak	Nós falamos português.We speak Portuguese.
Eles elasThey	falamThey speak	Eles falam alto.They speak loudly.

Regular verbs ending in -er form the present indicative with the same personal endings as the regular paradigm. The verb comer serves as a model for recognizing the sequence of inflections in this group. The stem remains stable, and the verb ending marks the grammatical person.

PessoaPerson	VerboVerb	ExemploExample
EuI	comoHow	Eu como cedo.I eat early.
TuYou	comesyou eat	Tu comes fruta.You eat fruit.
Ele elaHe/she	comeEats	Ela come bem.She eats well.
NósWe	comemosWe eat	Nós comemos juntos.We eat together.
Eles elasThey	comemthey eat	Eles comem pão.They eat bread.

Regular verbs ending in er follow their own pattern in the present indicative. The verb partir serves as a productive model for this conjugation. This paradigm is essential for recognizing regular forms and also for distinguishing related irregular verbs.

PessoaPerson	VerboVerb	ExemploExample
EuI	partoI leave	Eu parto amanhã.I am leaving tomorrow.
TuYou	partesparts	Tu partes cedo.You leave early.
Ele elaHe/she	partehe/she leaves	Ele parte já.He leaves now.
NósWe	partimosWe left	Nós partimos juntos.We left together.
Eles elasThey	partemthey leave	Eles partem agora.They leave now.

Non-finite forms do not mark grammatical person and are used to form compound tenses, progressive aspects, and verbal phrases, as seen in Verbal Infinitives, Verbal Gerund, and Verbal Participles. The infinitive ends in -ar, -er or -ir, the gerund ends in -ando, -endo or -indo, and the regular participle ends in -ado or -ido. In Portuguese, the use of the gerund is more frequent in Brazil, while the personal infinitive appears more in European Portuguese and in formal registers.

IdeiaIdea	ExemploExample
InfinitivoInfinitive	falar, comer, partirto speak, to eat, to leave
GerúndioGerund	falando, comendo, partindospeaking, eating, leaving
ParticípioParticiple	falado, comido, partidospoken, eaten, left

Verbal phrases join an auxiliary verb to a non-finite form to express time, aspect, or intention, as explained in Verbal Phrases. With estar and gerund, the construction indicates ongoing action. With ter or haver and participle, the compound tense is formed; with ir and infinitive, the near future is indicated.

IdeiaIdea	ExemploExample
Estar + gerúndioEstar + gerund	Estou lendo um livro.I am reading a book.
Ter + particípioTer + participle	Tenho falado com ela.I have spoken to her.
Ir + infinitivoIr + infinitive	Vou estudar à noite.I will study at night.

Auxiliary verbs sustain the structure of compound tenses and periphrastic constructions, especially ter, haver, ser and estar, as detailed in Auxiliary Verbs. In these constructions, the main value of tense, aspect, or voice depends on the combination of the auxiliary and the non-finite form. Therefore, the auxiliary almost never carries the full sense of the action by itself.

IdeiaIdea	ExemploExample
TerTo have	Tenho terminado cedo.I have finished early.
HaverTo have	Havia muitos sons.There were many sounds.
EstarTo be	Estava chovendo forte.It was raining heavily.

Modal and periphrastic verbs, such as poder and dever, combine with the infinitive to express possibility, obligation, or hypothesis. This behavior is central in Modal Verbs, and it also appears in causative structures close to Causative Verbs. The modal verb does not replace the main action, but adds semantic value to the non-finite form that accompanies it.

IdeiaIdea	ExemploExample
Poder + infinitivoPoder + infinitive	Posso sair mais cedo.I can leave earlier.
Dever + infinitivoDever + infinitive	Devo estudar hoje.I must study today.
Valor modalModal value	A forma principal continua no infinitivo.The main form remains in the infinitive.

Some participles deviate from the ado and ido pattern and must be memorized as traditional forms. Among the most frequent are feito, visto, and dito, which appear with great naturalness in formal Portuguese and in everyday speech. Mastery of these forms prepares the study of Verbal Participles and helps recognize combinations with auxiliaries.

VerboVerb	ParticípioParticiple	ExemploExample
fazerTo do	feitoDone	O trabalho foi feito.The work was done.
verTo see	vistoSeen	Tudo foi visto.Everything was seen.
dizerTo say	ditoSaid	Isso foi dito antes.That was said before.

Regular verbs provide the basic model for understanding how Portuguese distributes the root, endings, non-finite forms, and periphrastic constructions. From the paradigms in -ar, -er and -ir, it becomes easier to recognize how auxiliaries, modals, and participles work. This knowledge is indispensable for confidently advancing in the study of Irregular Verbs.