On continue du moment que l’argile reste stable.

In everyday French, on very often means we.

So On continue usually means We continue or We keep going.

Although on originally means something like one in English, in modern spoken French it is extremely common as a replacement for nous. It sounds more natural and conversational in many situations.

• On continue = We continue / We keep going
• Nous continuons = also correct, but more formal or less conversational

Because the subject is on, not nous.

The verb must match the subject:

• on continue
• nous continuons

So even though on often means we, it still takes third-person singular verb forms.

That is why you get:

• On continue not
• On continuons

Here, du moment que means as long as, provided that, or sometimes so long as.

In this sentence:

• On continue du moment que l’argile reste stable = We continue as long as the clay remains stable

This expression introduces a condition.

Be careful: learners sometimes try to understand it word for word as from the moment that, but in many contexts that literal idea is not the best translation. In this sentence, the real meaning is conditional: if this condition stays true, we continue.

Not always.

Depending on context, du moment que can mean:

• as long as
• provided that
• sometimes even since, in the sense of given that

In your sentence, the most natural meaning is clearly conditional:

• as long as the clay remains stable

So context decides the best English translation.

Reste here is actually the present indicative form of rester.

• je reste
• tu restes
• il / elle / on reste

After du moment que, French often uses the indicative, especially when the condition is presented in a straightforward way.

So:

• l’argile reste stable = the clay remains stable

A learner might expect the subjunctive after some conjunctions, but du moment que does not automatically require it in a sentence like this.

L’argile means the clay.

The full article is la, because argile is a feminine singular noun:

• la argile would be awkward in pronunciation
• so French contracts it to l’argile

This happens because argile begins with a vowel sound.

So:

• la + argile → l’argile

This is called elision.

A rough pronunciation guide is:

• l’argile ≈ lar-zheel
• reste ≈ rest
• stable ≈ sta-bl

A few helpful points:

• In l’argile, the l’ links directly to the next word.
• argile has a soft g sound, like the s in measure.
• The final e in reste and stable is normally not strongly pronounced in standard speech.

So the rhythm is roughly:

On continue / du moment que / l’argile reste stable

Stable is an adjective describing l’argile.

So:

• l’argile = the clay
• reste stable = remains stable / stays stable

The verb rester often works with an adjective:

• rester calme = remain calm
• rester immobile = remain still
• rester stable = remain stable

So the structure is very natural in French.

Because stable already has the same form in both masculine and feminine singular.

Since argile is feminine, some learners expect a visible feminine ending, but many adjectives do not change in pronunciation or spelling between masculine and feminine singular.

For stable:

• masculine singular: stable
• feminine singular: stable
• masculine plural: stables
• feminine plural: stables

So l’argile reste stable is exactly what you would expect.

Yes. You could say:

Nous continuons du moment que l’argile reste stable.

That is grammatically correct.

The difference is mostly one of style:

• On continue... = more natural in everyday spoken French
• Nous continuons... = a bit more formal or written

Both mean the same thing here.

Yes, depending on context, French speakers might also say:

• On continue tant que l’argile reste stable.
• On continue si l’argile reste stable.

The differences are small but useful:

• tant que = very clear as long as
• si = if
• du moment que = as long as / provided that

Your original sentence is correct, but tant que may feel more immediately transparent to learners because it maps very clearly to as long as.

A natural translation would be:

We continue as long as the clay remains stable.

Depending on context, you could also say:

• We keep going as long as the clay stays stable.
• We carry on provided the clay remains stable.

If the tone is technical or scientific, remains stable is often the best choice.