Portuguese Phrase
Muda todo dia.
Meaning
‘Muda todo dia.’ means ‘It changes every day.’ The sentence is used to comment on something that is constantly in flux – the weather, a person’s mood, a situation, etc.
When to use
Use this phrase when you want to point out that a particular thing does not stay the same and varies from one day to the next. It works in casual conversation, social media updates, or when describing a pattern.
✦Grammar Breakdown
Mudatododia
Muda (verb)
Third‑person singular of the verb *mudar* (to change) in the present indicative. The subject is often omitted, e.g., ‘ele/ela/isso muda…’.
todo (adverb)
Used as an adverb meaning ‘every’. In the fixed expression *todo dia* it means ‘every day’.
dia (noun)
Singular noun ‘day’. In the expression *todo dia* the noun stays singular; the plural form *dias* would be incorrect here.
Imperative vs. Indicative
‘Muda’ can also be the informal imperative (tu) – ‘Change!’ – but without context it is usually read as a statement.
🗨In Conversation
Muda todo dia.
It changes every day.
É verdade, nunca sabemos o que esperar.
That’s true, we never know what to expect.
✕Common Mistakes
Muda todos dia.
‘Todo’ is the correct adverb; ‘todos’ is plural and does not fit the fixed expression.
Muda todo dias.
In the idiom *todo dia* the noun stays singular; using *dias* makes the phrase ungrammatical.
Muda todo dia!
If you intend the imperative ‘Change every day!’, you need a subject or a clearer context; otherwise it’s read as a statement.
↔Alternatives
Muda diariamente.
It changes daily.
Muda a cada dia.
It changes each day.
Tudo muda a cada dia.
Everything changes each day.
Cultural Tip
In Brazilian Portuguese the most common way to say ‘every day’ is *todo dia*, but you’ll also hear *todos os dias* – both are correct, with *todos os dias* sounding slightly more formal. Remember that the noun stays singular in *todo dia*; adding an ‘s’ (e.g., *todos dias*) is a frequent mistake for learners.