Breakdown of O cientista está a trabalhar no laboratório.
estar
to be (temporary / location)
no
in the / on the / at the (m, f, pl forms: na, nos, nas)
trabalhar
to work
o cientista
the scientist
o laboratório
the laboratory
Questions & Answers about O cientista está a trabalhar no laboratório.
Why is it O cientista and not O cientisto?
Could I use trabalhando instead of a trabalhar here?
You could, but estar a followed by the infinitive (trabalhar) is the standard way to express ongoing actions in European Portuguese. Using the gerund (trabalhando) is much more common in Brazilian Portuguese or in specific regional dialects of Portugal.
Why use está instead of é for someone who is permanently a scientist?
Why does the sentence use no before laboratório?
The word no is a mandatory contraction of the preposition em (in, on, or at) and the masculine singular article o (the). Because laboratório is a masculine noun, we must combine them into no to say 'in the'.
Learn O cientista está a trabalhar no laboratório and more in Portuguese
All course content and exercises are completely free — no paywalls, no trial periods, no signup needed.
- ✓ Practice with interactive exercises
- ✓ Track your progress with spaced repetition
- ✓Learn at your own pace — completely free