Mi konsentas kun via opinio pri la nova projekto.

Because -as marks the present tense in Esperanto.

• konsenti = to agree
• konsentas = agree / am agreeing

So Mi konsentas means I agree. The dictionary form is always the infinitive, usually ending in -i.

In Esperanto, konsenti kun means to agree with someone or something.

So:

• Mi konsentas kun vi = I agree with you
• Mi konsentas kun via opinio = I agree with your opinion

This is different from English, where learners may be tempted to make opinio a direct object. Esperanto normally uses kun here, not a direct object.

Pri means about, concerning, or regarding.

So:

• via opinio pri la nova projekto = your opinion about the new project

It tells us the topic of the opinion. The sentence is not just about any opinion, but specifically an opinion concerning the new project.

Because this phrase is not a direct object.

In Esperanto, the -n ending is mainly used for:

• direct objects
• movement toward something in some expressions

Here, via opinio comes after the preposition kun, and prepositions normally do not take -n.

So:

• correct: kun via opinio
• not correct here: kun vian opinion

For the same reason: opinio is not the direct object of the verb.

The structure is:

• Mi konsentas = I agree
• kun via opinio = with your opinion
• pri la nova projekto = about the new project

Since opinio is inside a prepositional phrase with kun, it stays in its basic form: opinio.

Normally, no.

That sounds like you are treating opinion as a direct object, but konsenti usually does not work that way in Esperanto. The normal expression is:

• Mi konsentas kun via opinio

If you want a verb that takes a direct object more naturally, you could use something like aprobi:

• Mi aprobas vian opinion = I approve of your opinion

But that is slightly different in meaning from I agree with your opinion.

La means the, so la nova projekto means the new project.

It is used when the speaker and listener are talking about a specific project already known in context. If you said:

• pri nova projekto

that would mean about a new project, more indefinite and less specific.

So la shows that this is a particular project.

Because adjectives commonly come before the noun in Esperanto:

• nova projekto = new project

They can also come after the noun:

• projekto nova

but that is less common and may sound more marked or stylistic. For ordinary speech and writing, putting the adjective before the noun is the most natural choice.

Yes, Esperanto word order is fairly flexible, as long as the grammar stays clear.

For example, these are possible:

• Mi konsentas kun via opinio pri la nova projekto.
• Pri la nova projekto, mi konsentas kun via opinio.

The first version is the most neutral and natural. Changing the order usually changes emphasis, not the basic meaning.

Yes, absolutely.

That means I agree with you about the new project.

There is a small difference in focus:

• Mi konsentas kun via opinio pri la nova projekto focuses on your opinion
• Mi konsentas kun vi pri la nova projekto focuses on you

In everyday Esperanto, many speakers would often prefer the version with vi when talking directly to someone.

It can mean either one.

Esperanto vi is used for:

• singular you
• plural you
• formal you
• informal you

So via can mean:

• your (one person)
• your (more than one person)

The context tells you which is meant.

In Esperanto, stress is always on the second-to-last syllable of each word.

So:

• Mi → just mi
• konsentas → kon-SEN-tas
• kun → kun
• via → VI-a
• opinio → o-pi-NI-o
• pri → pri
• la → la
• nova → NO-va
• projekto → pro-JEK-to

That regular stress pattern is one of the helpful features of Esperanto.