"Saskia comes late quite often."
Translation:Saskia komt behoorlijk vaak te laat.
- Te laat = too late > breaking some rule, deadline or appointment
- Laat = late > later than some norm or reference, or late in the day/week/month, etc.
But in all cases where late means too late, te is always included in Dutch. Basically here it is a bit fuzzy in English and strict in Dutch.
So if you leave out te in Dutch, the meaning changes and Saskia is often later than the norm, but this doesn't have to mean she is too late.