visto que

Causal Visto Que

Level 4

Use visto que in formal writing or speeches to explain the reason for something, especially when that reason is already known or accepted as a fact.

How It Works

The expression visto que is a subordinating conjunction used to introduce a causal clause. It is particularly common in academic, legal, and journalistic registers.

Key characteristics include:

Fact-Based: In its causal sense, it introduces a premise that is treated as a 'given' or an established fact, rather than new or surprising information.
Sentence Placement: Unlike porque, which rarely starts a sentence in formal writing, visto que is frequently used at the beginning of a sentence to set a premise (e.g., "Visto que o prazo terminou, não aceitaremos mais inscrições").
Invariable: Unlike the participle 'visto' (seen), which changes for gender and number, the locution visto que never changes. You should never say 'vista que' or 'vistos que'.
Mood: Because it deals with facts, it triggers the indicative mood, not the subjunctive.
Formal Variant: In very formal Portuguese, you may encounter the construction visto + infinitive (e.g., "Visto não haver provas..."), which functions identically to "Visto que não há provas...".
Punctuation: When the visto que clause follows the main clause, it is usually preceded by a comma.

While it shares a meaning with porque or já que, visto que is significantly more formal and is a staple of Level 4+ proficiency in written Portuguese.

Examples (4)

Visto que não houve quórum, a reunião foi adiada.
Given that there was no quorum, the meeting was postponed.
Word by Word: Seen that not there-was quorum, the meeting was postponed.
Here, 'visto que' introduces the established reason (lack of quorum) at the beginning of the sentence.
A proposta foi rejeitada, visto que os custos eram excessivos.
The proposal was rejected, seeing as the costs were excessive.
Word by Word: The proposal was rejected, seen that the costs were excessive.
In this case, the causal clause follows the main clause and is separated by a comma.
Visto que você já terminou o relatório, pode sair mais cedo.
Since you have already finished the report, you may leave early.
Word by Word: Seen that you already finished the report, [you] can leave more early.
This uses 'visto que' to draw a logical conclusion from a completed fact.
Visto que a situação é grave, precisamos agir agora.
Given that the situation is serious, we need to act now.
Word by Word: Seen that the situation is serious, [we] need to act now.
Note that 'visto' remains masculine singular even though 'situação' is feminine.

Common Mistakes

Using the subjunctive mood after 'visto que'.
Visto que ele tenha tempo, ele virá.
Visto que ele tem tempo, ele virá.
Learners often over-apply the subjunctive to all conjunctions. However, 'visto que' introduces a fact, so the indicative 'tem' is required.
Changing the gender of 'visto' to match a feminine noun.
Vista que a lei mudou...
Visto que a lei mudou...
As a fixed conjunction, 'visto que' is invariable. It does not agree with the subject of the following clause.
Confusing 'visto que' with 'posto que'.
Posto que você está aqui, vamos começar. (intended as 'since')
Visto que você está aqui, vamos começar.
In standard grammar, 'posto que' means 'although' (concessive), while 'visto que' means 'since' (causal). Using 'posto que' for cause is a common error even among native speakers.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

visto queLevel 4Causal Visto Que

Learn This First

To understand 'visto que', learners need to be familiar with how Portuguese links ideas of cause and effect. It functions similarly to 'porque' (because) but is more formal and introduces a cause that is already known or evident to the listener. Knowledge of basic conjunctions and the use of 'que' to introduce subordinate clauses is necessary.

Words in This Pattern