A fuerza de practicar, aprendimos a humedecer la arcilla.

A fuerza de is a fixed expression that means something like by dint of, through sheer, or as a result of doing something repeatedly/persistently.

So a fuerza de practicar means:

• by practising a lot
• through constant practice
• by sheer repetition/practice

It often suggests effort, persistence, and repetition over time.

Examples:

• A fuerza de leer, mejoró muchísimo.
  By reading a lot, he/she improved a great deal.
• A fuerza de insistir, consiguió entrar.
  By insisting so much, he/she managed to get in.

After a fuerza de, Spanish normally uses an infinitive, not a gerund.

So the pattern is:

• a fuerza de + infinitive

Examples:

• a fuerza de estudiar
• a fuerza de trabajar
• a fuerza de repetir
• a fuerza de practicar

For an English speaker, this may feel unusual because English often uses -ing forms after expressions like by:

• by practising

But Spanish does not copy that structure here. It uses the infinitive instead:

• a fuerza de practicar

Because the verb aprender often takes a + infinitive when it means to learn how to do something.

So:

• aprender a + infinitive = to learn to / to learn how to

Examples:

• Aprendí a cocinar.
  I learned to cook.
• Aprendieron a nadar.
  They learned to swim.
• Aprendimos a humedecer la arcilla.
  We learned how to moisten the clay.

Without a, the sentence would sound wrong in standard Spanish.

Aprendimos is the preterite form of aprender for nosotros.

So it means:

• we learned

The preterite is used for a completed action in the past. Here, it presents the learning as something achieved.

Conjugation of aprender in the preterite:

• yo aprendí
• tú aprendiste
• él/ella/usted aprendió
• nosotros/nosotras aprendimos
• vosotros/vosotras aprendisteis
• ellos/ellas/ustedes aprendieron

Yes. For a learner of Spanish from the UK, we learnt is a perfectly good translation of aprendimos. For an American learner, we learned is the usual equivalent.

Both are fine in English:

• we learned
• we learnt

In Spanish, there is only aprendimos here.

Not exactly.

Humedecer means to moisten, to dampen, or to make slightly wet. It usually suggests adding some moisture, not soaking something completely.

Mojar means to wet in a broader sense, and it can sound stronger or more general.

So with la arcilla (the clay), humedecer is a very natural choice if the idea is to add enough water to make the clay workable, not to drench it.

Rough comparison:

• humedecer = to moisten / dampen
• mojar = to wet

In Spanish, h is normally silent.

So humedecer is pronounced roughly like:

• oo-meh-deh-THER in much of Spain
• oo-meh-deh-SER in many Latin American varieties

In Spain, the c before e is typically pronounced like the th in thin:

• humedecer → oo-meh-deh-THER

Also:

• the stress falls on the last syllable: -cer
• the u is pronounced
• the h is silent

Spanish often uses the definite article more often than English does.

Here, la arcilla means the clay, but in English we might naturally say just clay depending on context.

Spanish commonly uses the article with materials, body parts, abstract ideas, and things already understood from the situation.

So:

• humedecer la arcilla is very natural
• dropping the article would usually sound less natural here

Arcilla means clay.

It usually refers to the natural earthy material used in pottery, sculpture, construction, etc.

Examples:

• una vasija de arcilla = a clay vessel
• modelar la arcilla = to shape the clay
• humedecer la arcilla = to moisten the clay

It expresses the means or process by which the result was achieved, with a strong sense of persistence.

In simpler terms, it answers:

• How did we learn?
• By practising over and over.

So it is not just a neutral cause. It often carries the idea:

• through sustained effort
• by repeated action
• by sheer persistence

Yes. Spanish allows some flexibility.

The original sentence is:

• A fuerza de practicar, aprendimos a humedecer la arcilla.

You could also say:

• Aprendimos a humedecer la arcilla a fuerza de practicar.

Both are grammatical. The version with A fuerza de practicar at the beginning gives more emphasis to the effort and repetition.

So the fronted version highlights:

• By practising and practising, we learned...

Because practicar here is being used in a general sense: to practise.

The sentence focuses on the repeated activity itself, not necessarily on a specific direct object.

Spanish often leaves this general when the context already makes it clear:

• practising pottery
• practising the technique
• practising the process

If the speaker wanted to specify the thing practised, they could:

• A fuerza de practicar la técnica...
• A fuerza de practicar con la arcilla...

But the original is perfectly natural and slightly more general.

Yes, it sounds natural and correct in Peninsular Spanish.

A speaker from Spain would understand it easily. It has a slightly careful or descriptive tone because of words like a fuerza de and humedecer, but it is fully natural.

If someone wanted a slightly simpler, more everyday version, they might say something like:

• De tanto practicar, aprendimos a humedecer la arcilla.

That means nearly the same thing:

• From practising so much, we learned how to moisten the clay.

They are similar, but not identical in tone.

• a fuerza de practicar sounds a bit more emphatic and highlights persistence or sheer effort
• de tanto practicar sounds a bit more everyday and means from practising so much

So:

• A fuerza de practicar, aprendimos...
  suggests repeated effort led to the result
• De tanto practicar, aprendimos...
  suggests the result came from doing it a lot

Both are common and natural, but a fuerza de can feel a little stronger.

It is mostly regular, but with a spelling change in some forms to preserve pronunciation.

Infinitive:

• humedecer

Like other verbs ending in -ecer, it may change c → zc in the yo form of the present:

• yo humedezco

Some present subjunctive forms also reflect that:

• humedezca, humedezcas, etc.

But in many other forms it looks regular:

• humedecemos
• humedecéis
• humedecía
• humedecieron

This kind of spelling change is common in Spanish and is about sound, not meaning.

Yes. Very much so.

With aprender a + infinitive, Spanish often focuses on acquiring an ability or skill:

• learned how to do it
• became able to do it properly

So aprendimos a humedecer la arcilla suggests not just that we were told how to do it, but that we actually learned the technique.

That fits well with a fuerza de practicar, since repeated practice is exactly how skills are usually acquired.