Hasta que deje de maullar la gata de la granja, mi hija no quiere entrar en el establo.

Because hasta que often triggers the subjunctive when the action has not happened yet or is being looked at as something expected in the future.

Here, the cat has not stopped meowing yet, so Spanish uses the present subjunctive:

• Hasta que deje de maullar... = Until the cat stops meowing...

If the speaker were talking about something habitual or already completed, the indicative could appear in other contexts, but in this sentence the stopping is still pending, so deje is the natural choice.

Hasta que means until.

So the first part:

• Hasta que deje de maullar la gata de la granja...

means:

• Until the farm cat stops meowing...

A very important grammar point is that hasta que + subjunctive is commonly used when the action after hasta que is still in the future or uncertain from the speaker’s point of view.

Dejar de + infinitive means to stop doing something.

So:

• dejar de maullar = to stop meowing

Other examples:

• dejar de hablar = to stop talking
• dejar de correr = to stop running
• dejar de llorar = to stop crying

In this sentence, deje de maullar means stops meowing.

Maullar is the verb meaning to meow.

• El gato maúlla. = The cat meows.

Miau is just the sound itself, like meow in English.
So:

• maullar = the action
• miau = the sound

Because gata specifically means a female cat.

• el gato = the male cat / cat in a general sense
• la gata = the female cat

So the sentence is not just saying the cat in a neutral way; it is specifically referring to the female cat.

De la granja means of the farm or more naturally in English, from the farm / the farm’s.

So:

• la gata de la granja = the farm cat

Spanish often uses de + noun where English might use a noun as an adjective or a possessive structure.

Compare:

• el dueño de la casa = the owner of the house
• la puerta del coche = the car door
• la gata de la granja = the farm cat

Spanish word order is more flexible than English word order.

In English, you would normally say:

• the farm cat stops meowing

But in Spanish, it is very normal to place the subject after the verb, especially in subordinate clauses:

• deje de maullar la gata de la granja

This does not change the meaning. It simply sounds natural in Spanish. You could also say:

• Hasta que la gata de la granja deje de maullar...

That version is also correct and may feel more straightforward to an English speaker.

Because the subject of both actions is the same person: mi hija.

She is the one who:

1. does not want
2. to enter

When the same subject does both actions, Spanish usually uses:

• querer + infinitive

So:

• mi hija no quiere entrar = my daughter doesn’t want to go in

You would use querer que + subjunctive if the second action had a different subject:

• Mi hija no quiere que yo entre en el establo.
• My daughter doesn’t want me to go into the stable.

In Spain, entrar en is very common and often preferred in careful or standard usage.

• entrar en el establo = to enter the stable

You may also hear entrar a in some regions or contexts, especially in Latin America:

• entrar al establo

Both can be understood, but for Spanish from Spain, entrar en is a very good choice.

Establo means stable or cowshed, a building where farm animals are kept.

Depending on context, English might translate it as:

• stable
• barn
• shed for animals

But establo specifically suggests a place for livestock, not just any storage barn.

Because Spanish normally places no directly before the conjugated verb to make the sentence negative.

So:

• quiere = wants
• no quiere = doesn’t want

This is standard Spanish negation:

• No tengo dinero. = I don’t have money.
• No viene hoy. = He/She isn’t coming today.
• Mi hija no quiere entrar... = My daughter doesn’t want to go in...

Spanish uses definite articles very often, sometimes more often than English does.

Here they are all referring to specific, identifiable things:

• la gata = the cat
• la granja = the farm
• el establo = the stable

In English, we might compress la gata de la granja into the farm cat, but Spanish keeps the articles in the full structure.

Yes, absolutely.

These two versions are both correct:

• Hasta que deje de maullar la gata de la granja...
• Hasta que la gata de la granja deje de maullar...

The second one may be easier for learners because the subject appears earlier. The original version places the subject later, which is very natural in Spanish.

Not always. It depends on whether the action is seen as pending/future or habitual/known.

Use subjunctive when the action has not happened yet:

• Esperaré hasta que llegues.
• I’ll wait until you arrive.

Use indicative when talking about a habitual or past factual situation:

• Siempre esperaba hasta que llegaba su padre.
• She always waited until her father arrived.

In your sentence, the cat has not yet stopped meowing, so deje is subjunctive.

Deje is the present subjunctive, first person singular or third person singular form of dejar.

Formation:

1. Start with the yo form of the present indicative:
   • yo dejo
2. Remove the -o
3. Add the subjunctive ending:
   • deje

For -ar verbs, the present subjunctive endings are:

• yo deje
• tú dejes
• él/ella/usted deje
• nosotros dejemos
• vosotros dejéis
• ellos/ellas/ustedes dejen

Here it is deje because the subject is la gata = she.

Yes. The present tense in Spanish can describe:

• what is happening now
• a current situation
• a general attitude

So this sentence could mean:

• My daughter doesn’t want to go into the stable right now
• or My daughter refuses to go into the stable as long as the cat is meowing

The exact nuance depends on context, just as in English.

Yes, it is grammatical and natural.

A slightly more straightforward version for learners would be:

• Mi hija no quiere entrar en el establo hasta que la gata de la granja deje de maullar.

This puts the main clause first, which may feel more familiar to an English speaker. But the original sentence is perfectly good Spanish, and starting with the hasta que clause gives it a bit of emphasis.