Learn French: On se doute que le faussaire vient de Paris. - We suspect that the forger comes from Paris.

On se doute que le faussaire vient de Paris.

We suspect that the forger comes from Paris.

Breakdown of On se doute que le faussaire vient de Paris.

one / we (informal)

of / from / any (in negative sentences) / about (concerning)

Paris

venir

to come

Questions & Answers about On se doute que le faussaire vient de Paris.

Why does this sentence use the indicative vient instead of the subjunctive?

This is the core difference between douter que and se douter que. The standard verb douter means "to doubt," which introduces uncertainty and requires the subjunctive. However, the reflexive se douter means "to suspect" or "to have a hunch." Because you are expressing that something is likely true, it takes the indicative.

How does adding se change the meaning of douter here?

It completely flips the meaning! While douter means you don't believe something, se douter means you do believe it (or have a strong feeling about it). Because it translates to "to suspect" or "to imagine," it focuses on probability rather than doubt.

If I made this sentence negative to say "We don't suspect that", would it still use the indicative?

No, it would switch to the subjunctive! If you say On ne se doute pas que, you are expressing ignorance or a lack of suspicion. That introduces enough uncertainty to trigger the subjunctive, making it On ne se doute pas que le faussaire vienne de Paris.

Why is the translation "We suspect" when the French sentence uses On instead of Nous?

In everyday spoken French, on is the standard way to say "we." You could absolutely say Nous nous doutons que, but it would sound noticeably more formal.