Puella humilis in foro stat et oratorem nobilem clara voce loquentem audit.

Because puella humilis is the subject of the sentence, so both words are in the nominative singular.

• puella = nominative singular, feminine
• humilis = nominative singular, feminine, agreeing with puella

If the girl were the direct object, Latin would use puellam humilem instead.

Humilis is a third-declension adjective. Its nominative singular masculine and feminine form is humilis, while the neuter is humile.

So here:

• puella is feminine singular
• the matching nominative form is humilis

This is different from first-and-second-declension adjectives like bonus, bona, bonum.

Because in takes different cases depending on meaning:

• in + ablative = in / on a place, showing location
• in + accusative = into / onto a place, showing motion toward it

Here the girl is already standing in the forum, so Latin uses the ablative:

• foro = ablative singular of forum

If she were walking into the forum, you would expect in forum.

Stat literally means stands. It gives a more vivid picture than simply saying the girl is in the forum.

So Latin is not just telling you where she is; it is showing her there, standing in the marketplace and listening.

Also, Latin present tense often covers both:

• stands
• is standing

depending on context.

Because they are the direct object of audit.

The person being heard is the speaker:

• oratorem = accusative singular of orator
• nobilem = accusative singular, agreeing with oratorem

So the structure is:

• puella ... audit
• she hears the noble speaker

Because loquentem is a participle describing oratorem, so it must agree with it in:

• case
• number
• gender

Since oratorem is masculine accusative singular, loquentem is also masculine accusative singular.

So oratorem nobilem clara voce loquentem means something like:

the noble speaker speaking with a clear voice

Loquor is a deponent verb. Deponent verbs have passive-looking forms but active meanings.

So:

• loquor means I speak, not I am spoken
• loquens means speaking
• loquentem is the accusative singular form of that participle

This is very common in Latin and often surprises English-speaking learners.

Clara voce is an ablative phrase meaning with a clear voice or in a clear voice.

This is usually explained as an ablative of manner.

• voce = ablative singular of vox
• clara agrees with voce

Latin often uses this construction to show the way an action is done.

With the ablative of manner, Latin often uses cum when the noun stands alone, but often omits it when the noun has an adjective.

So both patterns are possible:

• cum voce = with a voice
• clara voce = with a clear voice

Because voce has the adjective clara, Latin does not need cum here.

The most natural reading is that it describes the speaker, not the girl.

So the idea is:

• the girl stands in the forum
• she hears the noble speaker
• the speaker is speaking with a clear voice

This is suggested by the grouping:

oratorem nobilem clara voce loquentem

The phrase sits right next to loquentem, so learners will usually understand it as going with the speaker’s speaking.

Latin word order is much more flexible than English word order because Latin uses endings to show grammatical relationships.

In English, word order usually tells you who is doing what. In Latin, the endings do much of that work:

• puella is nominative, so she is the subject
• oratorem is accusative, so he is the object
• foro and voce are ablative, showing their own functions

That lets Latin arrange words for emphasis or style. Here the sentence first sets the scene, then saves audit until the end of the second clause.

Yes. Audit is the third-person singular present form of audio:

• audio = I hear
• audit = he, she, or it hears

For an English speaker, the form can look strange because of the English word audit, but in Latin this is just the normal verb for hearing.