Learn Portuguese (Portugal): Em quaisquer circunstâncias, precisamos de acionar o protocolo. - Under any circumstances, we need to trigger the protocol.

The word qualquer (any) is unique in Portuguese because it pluralizes internally. Instead of adding an 's' to the end, the first part of the word (qual) becomes plural (quais), giving us the anomalous form quaisquer. It must be plural here to agree with the plural noun circunstâncias.

The English translation says 'Under any circumstances', so why does the Portuguese use Em instead of Sob?

While sob translates literally to 'under', Portuguese naturally pairs the preposition em (in/at/on) with the word circunstâncias. It is heavily preferred to use em qualquer circunstância or em quaisquer circunstâncias rather than literal translations using sob.

Why do we need the preposition de in precisamos de acionar?

The verb precisar requires the preposition de when followed by an infinitive verb or a noun to express 'to need to do something' or 'to need something'. At the B2 level, you might notice native speakers occasionally dropping the de before an infinitive in fast, casual speech, but precisar de is the grammatically correct standard you should continue to use.

Is acionar just a direct translation of the English corporate jargon 'to action'?