B1 (Intermediate)Lesson 8: Sentence Architecture
Portuguese uses three major non-finite verb forms: infinitive, gerund, and participle. They help build periphrases, noun-like structures, and reduced clauses.
Infinitive names the action
Gerund highlights process
Participle often marks result or participates in compound structures
infinitive / gerund / participle
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The infinitive names the action or combines with auxiliaries and prepositions: "estudar", "para estudar".
The gerund often expresses ongoing process or accompanying action: "estou trabalhando", "falando sério".
The participle often appears in compound tenses, passive forms, and result states: "feito", "aberto", "resolvido".
These forms do not show full person agreement like finite verbs do.
The personal infinitive is a later step and gets its own lesson.
Reduced clauses built from these forms become especially important from B2 onward.
| Portuguese | Meaning |
|---|---|
| Viajar é bom. | Traveling is good. |
| Estou trabalhando agora. | I am working now. |
| Porta fechada. | Door closed. |
| Para estudar melhor, preciso de silêncio. | To study better, I need silence. |
| Falando sério, isso importa. | Seriously speaking, that matters. |
Some participles are irregular and need to be learned lexically.
The gerund is strong in Brazilian Portuguese, especially in ongoing-action periphrases.
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