How to Use “De” in Portuguese After Verbs and Adjectives

Introduction

The Portuguese preposition de is deceptively small but essential. After verbs and adjectives, de often links actions, feelings, opinions, causes, origins, and complements. For English speakers learning Brazilian Portuguese, mastering when and how to use de will make your speech and writing sound natural and accurate. This article explains rules, patterns, and common verbs and adjectives followed by de, with clear examples and usage notes.

Why de matters after verbs and adjectives

De works like English of, from, about, or to, but its use is more frequent and sometimes different. After verbs and adjectives, de introduces a complement that can be a noun, pronoun, infinitive, clause, or sometimes a gerund. Understanding these patterns helps you avoid errors such as using the wrong preposition or leaving it out when Portuguese requires it.

Basic functions of de after verbs

In verb constructions, de commonly connects the verb to:

• an action expressed by an infinitive: esperar de alguém fazer algo, lembrar de fazer algo

• a noun or pronoun that completes the meaning: gostar de música, precisar de ajuda

• a clause introduced by que: desconfiar de que algo acontece

Common verb patterns with de

Below are frequent verbs followed by de. Learn the meaning and see examples so you can use them naturally.

Verbs that take de + noun

These verbs need a noun or pronoun as their object with de:

gostar de, precisar de, precisar de ajuda
gostar de música — Eu gosto de música brasileira.
precisar de — Eu preciso de ajuda com o relatório.

Verbs that take de + infinitive

Some verbs require de before a following verb in the infinitive:

acabar de, lembrar de, esquecer de
acabar de — Eu acabei de chegar. (I just arrived.)
lembrar de — Lembrei de comprar pão. (I remembered to buy bread.)
esquecer de — Ela esqueceu de ligar para a mãe. (She forgot to call her mother.)

Verbs that take de + que-clause

Certain verbs use de before a subordinate clause introduced by que:

desconfiar de que, ter certeza de que, duvidar de que
desconfiar de que — Eu desconfio de que ele não vai vir.
ter certeza de que — Você tem certeza de que está pronto?
duvidar de que — Duvido de que seja verdade.

Verbs of opinion and perception

Verbs that express feelings, beliefs, or perceptions often use de:

achar de, pensar de, sentir falta de
achar de — O que você acha de estudar hoje? (What do you think about studying today?)
pensar de — O que você pensa dele? Note that pensar em and pensar de differ: pensar em means to think about someone or something, while pensar de asks for an opinion.
sentir falta de — Sinto falta de você. (I miss you.)

Adjectives followed by de

Adjectives in Portuguese often need prepositions to connect to their complements. De is one of the most common. When an adjective describes a feeling, opinion, or relationship, it frequently takes de plus a noun, pronoun, or clause.

Common adjective + de patterns

Examples of adjectives followed by de:

cheio de, orgulhoso de, capaz de, contente de
cheio de — A caixa está cheia de livros.
orgulhoso de — Estou orgulhoso de você.
capaz de — Ele é capaz de terminar o trabalho hoje.
contente de — Estamos contentes de ver você.

Adjectives + de + infinitive

Some adjectives are followed by de and an infinitive to express ability, willingness, or intention:

capaz de, pronto de (less common than pronto para), cheio de vontade de
capaz de — Ela é capaz de correr uma maratona.
pronto para is more common than pronto de to indicate prepared for something: Estou pronto para sair.

Adjectives + de + que-clause

Certain adjectives take de before que-clauses, especially when stating an opinion or certainty:

certo de que, convicto de que, surpreso de que
certo de que — Ele estava certo de que faria sol.
convicto de que — Estou convicto de que fiz a escolha certa.
surpreso de que — Fiquei surpreso de que ela aceitou o convite.

Key differences: de vs other prepositions

Portuguese uses multiple prepositions where English might use the same word. Two common contrasts:

de vs por

De often indicates origin, possession, material, cause, or topic, while por leans toward motive, duration, exchange, or agent in passive voice. After verbs and adjectives, de is common for complements meaning of/about/from, while por appears in expressions like pedir por and lutar por.

Example:
preocupar-se de vs preocupar-se por — Preocupar-se de algo is standard for being worried about something; preocupar-se por can emphasize concern motivated by a reason. Use the phrase native speakers prefer: Estou preocupado com/por você and preocupado com is very common.

de vs com

Com indicates accompaniment, instrument, or manner. After adjectives, com often links to a person or thing someone is with or an instrumental detail, while de connects to causes, content, or possession.

Example:
bravo com vs bravo de — Estou bravo com você means I am angry with you. Estou bravo de is not used the same way; instead use bravo por or bravo com depending on context.

Pronouns, contractions, and object placement

When a pronoun follows de, use the appropriate object pronoun (mim, você, ele, ela, nós, eles). Note that mim, você, ele etc. are used after prepositions; subject pronouns are not used directly after prepositions.

Example:
falou de mim — Ele falou de mim com os colegas.
preciso de você — Preciso de você agora.

Contractions with articles

De contracts with definite articles de + o = do, de + a = da, de + os = dos, de + as = das. Use these contractions when a noun is preceded by a definite article.

Example:
o livro do professor — Eu preciso do livro do professor.
a casa da Maria — A festa é na casa da Maria.

When not to use de

Some verbs take other prepositions or no preposition at all before a complement. Learning verb-preposition pairs is crucial. For example, esperar can be used with or without preposition depending on meaning:

esperar + infinitive (no preposition) — Espero ver você amanhã. (I hope to see you tomorrow.)
esperar por (rare in Brazilian Portuguese, more European) — Espero por você na estação. Brazilians prefer esperar você na estação or aguardar por in more formal contexts.

Practical tips to learn usage

Practice with exposure and focused lists. Here are methods that help you internalize de patterns:

• Learn verbs with their prepositions as chunks: lembrar de, precisar de, gostar de.

• Read and listen to Brazilian Portuguese to hear natural collocations: novelas, podcasts, news.

• Make flashcards pairing verb/adjective with its usual preposition.

• When in doubt, check a reliable dictionary or grammar reference for the verb’s required preposition.

Common verbs and adjectives list

Here is a concise reference of frequent words that require de:

• Verbs: gostar de, falar de, depender de, precisar de, lembrar de, esquecer de, acabar de, duvidar de, desconfiar de

• Adjectives: cheio de, orgulhoso de, capaz de, certo de, convicto de, surpreso de, acusado de

Examples with translation notes

Short examples with literal sense to show how de maps to English meanings. These translations are to help understanding, but Portuguese often prefers different constructions.

Eu gosto de feijoada. — I like feijoada. (literal: I like of feijoada; Portuguese uses de before nouns for likes.)
Acabei de comer. — I just ate. (literal: I finished of eat; the phrase acabar de + infinitive means just did something.)
Estamos cheios de ideias. — We are full of ideas. (de = of)
Ela está orgulhosa de ter passado no exame. — She is proud to have passed the exam. (de + infinitive clause)

Colloquial notes and regional usage

Brazilian Portuguese tends to shorten or drop certain prepositions in spoken language, but with verbs and adjectives the standard forms described here are the safest. Some regional or colloquial uses might prefer synonyms or different constructions; for example, pessoas often say tenho saudade de alguém instead of sinto saudade de alguém. Listening to native speakers in the region you want to emulate helps adjust nuance.

Common mistakes and how to avoid them

Typical learner errors include omitting de, using the wrong preposition, or confusing contractions. To avoid them:

• Memorize verbs with their prepositions, not separately.

• When adding a clause after a verb or adjective, check if Portuguese needs que after the prepositional phrase: tenho certeza de que, duvido de que.

• Practice pronouns after prepositions: with de use mim, você, ele, ela, nós, eles — not eu or tu.

Short reference: quick rules

Keep these concise rules in mind as you use de after verbs and adjectives:

• Use de to link verbs/adjectives to nouns, infinitives, or que-clauses when the complement indicates origin, content, cause, or possession.

• Learn common verb+preposition pairs as fixed chunks.

• Watch for contractions with articles: do, da, dos, das.

• After prepositions use the appropriate object pronoun forms: mim, você, ele, ela, nós, eles.

Conclusion

Mastering the use of de after verbs and adjectives is essential for natural Brazilian Portuguese. Study common verb and adjective patterns, memorize collocations, and pay attention to contractions and pronouns. With listening and reading practice, you will internalize these patterns and speak more confidently. The small preposition de opens many doors in Portuguese grammar—learn it well and your communication will improve quickly.