Adjectives with infinitives (ser + adjetivo + de)

Describing Tasks with "Ser + Adjetivo + de"

To describe how easy, difficult, or interesting it is to perform an action on a specific object, Portuguese uses a specific structure:

  • [Specific Subject] + ser
    • [Evaluative Adjective] + de
      • [Infinitive]

Because the object is the subject of the sentence, the adjective must always agree with it in gender and number.

The scale model of the ship is very laborious to assemble.
A maqueta do navio é muito trabalhosa de montar.
The thickness of the piece is difficult to calculate.
A espessura da peça é difícil de calcular.
The decals of this replica are impossible to glue.
Os decalques desta réplica são impossíveis de colar.

Building scale models and miniatures is a meticulous hobby, making this grammar perfectly suited for describing the precise challenges involved in the craft.

This miniature is difficult to see without the magnifying glass.
Esta miniatura é difícil de ver sem a lupa.
The glue for plastic is dangerous to breathe.
A cola para plástico é perigosa de respirar.
The airplane is complicated to assemble, but the finish is rewarding.
O avião é complicado de montar, mas o acabamento é recompensador.
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