Farbisto uzos lakon, kondiĉe ke ni elektos ĝin.

Farbisto is made from:

• farb- = paint, coloring matter
• -ist- = a person զբաղված with a profession, activity, or practice
• -o = noun ending

So farbisto means a painter or someone who works with paint. In many contexts it suggests a house painter/decorator rather than a fine artist. A fine artist is often artisto or more specifically pentristo.

In Esperanto, -os is the future-tense verb ending.

So:

• uzos = will use
• elektos = will choose

One nice feature of Esperanto is that verb endings are completely regular:

• -as = present
• -is = past
• -os = future
• -us = conditional
• -u = imperative/jussive
• -i = infinitive

Because -n marks the direct object.

Here, the lacquer is the thing that the painter will use, so lako becomes lakon.

• Farbisto uzos lakon = A painter will use lacquer

That -n ending is one of the most important grammar markers in Esperanto.

Ĝin means it as a direct object.

It refers back to lakon / lako. In other words, ĝi stands for the lacquer.

It has -n because it is also a direct object:

• ni elektos ĝin = we will choose it

So both lakon and ĝin have -n for the same basic reason: each one is the object of its verb.

Kondiĉe ke means provided that, on condition that, or as long as.

It is close to se = if, but it sounds more explicit and more formal. It emphasizes that something will happen only under that condition.

So:

• se ni elektos ĝin = if we choose it
• kondiĉe ke ni elektos ĝin = provided that we choose it / on condition that we choose it

In this sentence, kondiĉe ke makes the condition sound stronger and more deliberate.

Esperanto usually uses the tense that matches the actual time of the action more directly than English does.

Since the choosing is in the future, elektos is very natural here.

English often uses present tense after words like if, when, or provided that even when the meaning is future:

• English: if we choose it
• Esperanto: often se/kondiĉe ke ni elektos ĝin

So this is a place where Esperanto and English do not line up exactly.

Esperanto has:

• no indefinite article at all
• one definite article: la

So:

• farbisto can mean a painter or sometimes just painter depending on context
• lakon can mean lacquer or the lacquer, depending on the situation

If the speaker wanted to be specifically definite, they could say la farbisto or la lakon only if the noun is definite and the grammar fits. More commonly:

• la farbisto uzos la lakon = the painter will use the lacquer

In your sentence, the lack of la leaves things less specifically definite.

Not exactly.

• farbo = paint
• lako = lacquer, varnish, or a lacquer-like coating

So a farbisto is a painter, but what they use in this sentence is specifically lako, not just any paint. That is perfectly possible: a painter/decorator may use different kinds of coatings and finishes.

Yes, to some extent.

Because Esperanto marks the direct object with -n, word order is more flexible than in English. The basic order here is the normal, easy-to-read one:

• Farbisto uzos lakon, kondiĉe ke ni elektos ĝin.

But other arrangements are possible, for example for emphasis:

• Kondiĉe ke ni elektos ĝin, farbisto uzos lakon.

That said, the standard subject-verb-object order is usually best for learners unless there is a special reason to change it.

They have fixed sounds:

• ĉ sounds like ch in church
• ĝ sounds like j in judge

So:

• kondiĉe is roughly kon-DEE-che
• ĝin is roughly jeen with an English j sound at the start

Esperanto spelling is very regular, so each letter has one normal pronunciation.