Portuguese Phrase
Testa os detectores de fumaça todo mês.
Meaning
This sentence is a direct instruction to check that the smoke detectors are working, and it emphasizes that the check should be done each month. It is a common safety reminder in homes and workplaces.
When to use
Use this phrase when you are reminding family members, roommates, or coworkers about fire‑safety maintenance. It also works well in written safety checklists, manuals, or public service announcements.
✦Grammar Breakdown
Testaosdetectoresdefumaçatodomês
Imperativo (tu)
‘Testa’ is the informal singular imperative of the verb ‘testar’, used when giving a direct command to someone you address as ‘tu’.
Artigo definido plural
‘os’ is the masculine plural definite article, matching ‘detectores’.
Complemento preposicional
‘de fumaça’ specifies the type of detector; ‘de’ links the noun ‘detectores’ to the noun ‘fumaça’.
Expressão adverbial de frequência
‘todo mês’ means ‘every month’; it is a fixed adverbial phrase indicating regularity.
🗨In Conversation
Você já testou os detectores de fumaça?
Have you already tested the smoke detectors?
Ainda não, mas vou testar hoje, como você disse: testa os detectores de fumaça todo mês.
Not yet, but I’ll test them today, as you said: test the smoke detectors every month.
✕Common Mistakes
Teste os detectores de fumaça todo mês.
If you are speaking to someone you address formally (you), use ‘teste’ instead of ‘testa’. ‘Testa’ is informal (tu).
Testa os detectores de fumaça todos os meses.
Both ‘todo mês’ and ‘todos os meses’ are correct, but ‘todo mês’ is more concise and idiomatic in spoken Portuguese.
Testa o detector de fumaça todo mês.
The plural form is needed because you usually have more than one detector; ‘detector de fumaça’ (singular) would refer to only one unit.
↔Alternatives
Verifique os alarmes de fumaça mensalmente.
Check the smoke alarms monthly.
Faça o teste dos detectores de fumaça a cada mês.
Do the smoke detector test each month.
Não se esqueça de testar os detectores de fumaça todo mês.
Don’t forget to test the smoke detectors every month.
Cultural Tip
In Brazil, fire‑safety regulations for condomínios (apartments) often require monthly testing of smoke detectors, and many insurance policies will only cover damages if the homeowner can prove regular maintenance. Using the informal imperative ‘testa’ is common in casual conversation, but in a formal notice you might prefer ‘teste’ (imperative formal) or the infinitive construction ‘faça o teste’.

