Polypus e captura fugit.

Polypus is nominative singular, which is the case normally used for the subject of the sentence.

You can tell it is the subject because:

• it is the thing doing the action
• the verb fugit is third person singular, so it matches a singular subject
• the form polypus is the dictionary form you would expect for a nominative singular noun

So polypus is the one that escapes.

After the preposition e or ex, Latin uses the ablative case.

So captura here is ablative singular.

That means:

• e = out of, from
• captura = capture, the catch, or captivity, depending on context
• e captura = from the capture or out of captivity

A very common beginner point is that prepositions in Latin often require a specific case, and e/ex takes the ablative.

They mean the same thing: out of or from.

The shorter form e is usually used before a consonant, and ex is usually used before a vowel or h.

So:

• e captura is natural
• you would more often see ex urbe
• you would also see ex horto

In practice, Latin authors sometimes vary, but this is the basic pattern learners are taught.

Here it is a noun, not a finite verb.

Its basic form is captura, -ae, a first-declension noun. In this sentence it appears in the ablative singular because it follows e.

A learner might wonder whether it is related to a verb, and yes, it is connected in meaning to the idea of capturing. But in this sentence, grammatically, it is simply a noun governed by the preposition.

This is a very important question, because fugit can be ambiguous in ordinary spelling.

Without macrons, fugit can be either:

• present: he, she, it flees / is fleeing
• perfect: he, she, it fled / has fled

If macrons are written, the difference is clearer:

• fugit = present
• fūgit = perfect

So if your text gives no macrons, you usually decide from context. In a simple beginner sentence like this, it is often intended as the present, but the spelling by itself does not force that.

Because Latin does not have articles like English the or a/an.

So Latin often just says:

• polypus instead of the octopus or an octopus
• captura instead of the capture

English has to choose an article when translating, but Latin usually leaves that to context.

No. Latin word order is much more flexible than English word order.

This sentence is perfectly normal as Polypus e captura fugit, but Latin could also say:

• E captura polypus fugit
• Fugit polypus e captura

The endings tell you what each word is doing, so Latin does not rely on word order as heavily as English does.

That said, the given order is very natural:

• Polypus first introduces the subject
• e captura gives the prepositional phrase
• fugit comes at the end, which is very common in Latin

Because e/ex specifically suggests movement out of something.

That fits the idea of escaping very well.

Compare the basic force of these prepositions:

• e/ex = out of, from inside
• ab = away from, from the side of
• de = down from, about, concerning, and in some contexts simply from

So if the sense is escaping out of a state of capture or confinement, e captura is a very natural choice.

It can depend on context.

A noun like captura can suggest:

• the act of capture
• a catch
• captivity or being captured

So in a sentence like this, a learner should not assume there is only one possible English wording. Latin often allows a range of closely related meanings, and the broader context tells you which shade is best.