"Kiam vi vidis viajn gepatrojn?"

Translation: When did you see your parents?

[FelipeMiranda09]

So "sia" is only for third person singular?

[feroxide23]

Yes

[Schillman]

Kiam mi naskigxis

[Marethyu9]

Parents? They went to get some milk three years ago... never saw them again. Hopefully they just want to find the perfect one!