Questions & Answers about Via angusta ad forum ducit.
Here via is nominative singular, because it is the subject of ducit.
A helpful detail: if macrons were written, nominative via and ablative viā would look different. Many beginner texts leave macrons out, so context has to tell you which case it is. In this sentence, the context clearly points to nominative:
- ducit is a singular verb, so it needs a singular subject
- angusta matches via as a nominative singular feminine adjective
- ad forum is a prepositional phrase showing destination, not a subject
So the basic structure is: The narrow road/street leads to the forum.
Angusta is an adjective modifying via, so it has to agree with it in:
- gender: feminine
- number: singular
- case: nominative
Since via is feminine nominative singular, the adjective must also be feminine nominative singular: angusta.
This is a very important Latin rule: adjectives change their endings to match the nouns they describe.
Latin word order is much more flexible than English word order. Both via angusta and are possible.