Ŝi uzas filtrilon por la portreto.

the

Breakdown of Ŝi uzas filtrilon por la portreto.

• por: for
• uzi: to use
• ŝi: she

Questions & Answers about Ŝi uzas filtrilon por la portreto.

Why does filtrilon end in -n?

Because filtrilon is the direct object of the verb uzas.

In Esperanto, the thing directly affected by the action usually gets the -n ending, called the accusative.

• Ŝi uzas filtrilon. = She uses a filter.
• filtrilo = a filter
• filtrilon = a filter as the direct object

So the sentence shows that the thing being used is the filter.

Why doesn’t portreto also have an -n ending?

Because portreto comes after the preposition por.

After a preposition like por, nouns normally do not take -n just for being after that preposition.

So:

• por la portreto = for the portrait

The direct object is still only filtrilon, not portreto.

What does por mean here?

Here por means for in the sense of intended for, meant for, or to be used with.

So filtrilon por la portreto suggests:

• a filter for the portrait
• a filter intended for the portrait
• a filter to use on the portrait

It is not showing movement or direction; it is showing purpose or intended use.