Ni laboras en la kampo.

In Esperanto, -as marks the present tense for all verbs.

So:

• labori = to work
• laboras = work / am working / is working / are working

Esperanto does not usually make a separate grammatical distinction between work and are working the way English does. The context tells you which is meant.

So Ni laboras can mean:

• We work
• We are working

Ni means we.

Esperanto does not normally distinguish between:

• we including you
• we excluding you

Both are just ni. If you need to make that clear, you do it with extra words or context.

La is the Esperanto definite article, meaning the.

So:

• kampo = a field / field
• la kampo = the field

A key difference from English is that Esperanto has no indefinite article. There is no separate word for a or an.

So:

• kampo can mean a field or just field
• la kampo means the field

In Esperanto, nouns normally end in -o.

So:

• kampo = field
• domo = house
• hundo = dog

This makes parts of speech very regular and easy to recognize.

En means in.

So:

• en la kampo = in the field

You need en because la kampo by itself is just the noun phrase the field. The preposition shows the relationship to the verb: they are working in the field.

Because this sentence is talking about location, not direction or a direct object.

• en la kampo = in the field (location)
• en la kampon = into the field (movement toward)

The -n ending is often used for:

1. the direct object
2. direction toward somewhere

Here, the meaning is simply that the people are working in the field, so kampo stays without -n.

Yes, but it would mean something different.

• Ni laboras en la kampo. = We work / are working in the field.
• Ni laboras la kampon. = We work the field / cultivate the field.

In the second sentence, la kampon is the direct object, so it takes -n.

This is a useful distinction:

• labori en la kampo = work in the field
• labori la kampon = work the field

It can mean either.

Esperanto present tense often covers both:

• We work
• We are working

If the speaker wants to emphasize an ongoing action, the context usually does that. Esperanto is often less specific than English about this difference unless extra wording is added.

Yes. Esperanto word order is fairly flexible, although subject–verb–other elements is the most neutral pattern.

So this is the most ordinary version:

• Ni laboras en la kampo.

But other orders are possible for emphasis, such as:

• En la kampo ni laboras.

That might sound like In the field, we work or It is in the field that we work.

Still, for a beginner, Ni laboras en la kampo is the safest and most natural order to use.

A simple approximate pronunciation is:

nee la-bo-RAS en la KAM-po

A few helpful points:

• Ni sounds like nee
• r is usually rolled or tapped
• stress in Esperanto normally falls on the second-to-last syllable

So:

• la-bo-RAS
• KAM-po

Usually in a sentence like this, yes, it most naturally means a literal field, especially farmland or open land.

But kampo can also be used more broadly in Esperanto, including some figurative senses like field in English.

In Ni laboras en la kampo, though, most learners should understand it as a physical field.

Usually, no.

Because Esperanto verbs do not change according to person, laboras by itself does not tell you whether the subject is I, you, he, she, we, or they.

So the subject pronoun is usually needed unless it is already very clear from the context.

That is why ni is important here:

• Ni laboras = We work / We are working