When to use de + verb

Portuguese Questions Grammar
#1

I have two cards:
Esta é a receita mais fácil de seguir
É divertido brincar com os meus netos
Each of these is conjugated ser + adverb + infinitive
When do you use de? Is it dependent on the adverb or the infinitive? Is the verb ser important here in determining when de is used?

#2

@mehzpez, in the sentence “Esta é a receita mais fácil de seguir”, the infinitive “seguir” is a complement. As such, it needs to be connected to the rest of the sentence via the preposition ‘de’. But in the sentence “É divertido brincar com os meus netos”, the infinitive would actually be the subject (more obvious if you reorder the sentence to “Brincar com os meus netos é divertido”). In this case, no connecting preposition is needed.

So, basically, if the infinitive is the subject, no preposition is needed and adding it would be grammatically incorrect. Otherwise, we’ll need the preposition there :slight_smile:

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#3

Thank you that helps a lot

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