Portuguese Phrase
Malho uma hora.
Meaning
I work out for an hour. The sentence states the speaker’s exercise routine or a recent workout lasting one hour.
When to use
Use this phrase when you’re talking about how long you exercise, answering a question about your routine, or describing a recent gym session.
✦Grammar Breakdown
Malhoumahora
Malho (present indicative)
‘Malho’ is the first‑person singular present indicative of the verb *malhar* (to work out). The subject ‘eu’ is usually omitted in Portuguese.
uma hora (duration)
‘uma’ is the feminine indefinite article matching the noun *hora*. When expressing a length of time, the preposition *por* is optional: *malho por uma hora* or simply *malho uma hora*.
Verb choice
*Malhar* is informal and common in daily conversation; the more formal equivalent is *exercitar‑se*.
🗨In Conversation
Quanto tempo você costuma malhar?
How long do you usually work out?
Malho uma hora.
I work out for an hour.
✕Common Mistakes
Malha uma hora.
‘malha’ is third‑person singular; the correct first‑person form is *malho*.
Malho um hora.
‘hora’ is feminine, so the article must be *uma*, not *um*.
Malho a uma hora.
Using *por* is not wrong, but adding *a* before the time (*a uma hora*) changes the meaning to ‘at one o’clock’.
↔Alternatives
Faço exercício por uma hora.
I do exercise for an hour.
Treino por uma hora.
I train for an hour.
Exercito‑me por uma hora.
I exercise for an hour.
Cultural Tip
In Brazil, *malhar* is the go‑to verb among friends and at gyms. It’s informal, so in a professional or medical context you might prefer *exercitar‑se* or *praticar atividade física*. Also, Brazilians often talk about the length of a workout without the preposition *por*, which is perfectly natural.

