La rentgenbildo montras ne nur la karion, sed ankaŭ la kronon.

The X-ray image shows not only the cavity but also the crown.

Breakdown of La rentgenbildo montras ne nur la karion, sed ankaŭ la kronon.

• la: the
• sed: but
• ne: not
• montri: to show

Questions & Answers about La rentgenbildo montras ne nur la karion, sed ankaŭ la kronon.

Why do karion and kronon end in -n?

Because they are direct objects of montras.

In Esperanto, a direct object normally takes the accusative ending -n. The dictionary forms are kario and krono. In the sentence, they become:

• kario → karion
• krono → kronon

Since the X-ray image is showing both things, both nouns are objects, so both get -n.

What does montras tell me grammatically?

Montras is the present-tense form of the verb montri, meaning to show.

Esperanto verb endings are very regular:

• -as = present
• -is = past
• -os = future
• -us = conditional
• -u = command / jussive
• -i = infinitive

So montras means shows / is showing.

Also, Esperanto verbs do not change for person or number. So:

• mi montras
• vi montras
• li montras
• ili montras

all use montras.

How do I know that la rentgenbildo is the subject?