El proveedor envió el presupuesto.

Because proveedor and presupuesto are both singular masculine nouns, and here they refer to specific things: a particular supplier and a particular estimate/quote.

Spanish usually keeps the definite article in cases where English might sometimes drop it. If the meaning were a supplier sent a quote, you would normally say Un proveedor envió un presupuesto.

Envió is the third-person singular preterite of enviar.

That means it matches él/ella/usted and describes a completed action in the past:

• yo envié
• tú enviaste
• él/ella/usted envió

So in this sentence, el proveedor envió... means the supplier sent it as a finished past action.

The accent in envió shows that the stress falls on the final syllable: en-vi-Ó.

It also helps distinguish it from envío, which can mean I send or shipment/dispatch, depending on context.

So:

• envió = he/she/it sent
• envío = I send / shipment

That accent is important.

Because Spanish usually does not need a subject pronoun when the subject is already clear.

Here, the subject is explicitly stated as el proveedor, so adding él would be unnecessary in most contexts.

Spanish often prefers:

• El proveedor envió el presupuesto.

rather than:

• Él, el proveedor, envió el presupuesto.

You might use él only for emphasis or contrast, for example if you were distinguishing him from someone else.

Yes. In business Spanish, especially in Spain, presupuesto very often means a price estimate or quotation.

So depending on context, presupuesto can be:

• budget
• estimate
• quote/quotation

In a sentence about a supplier sending one, the business meaning quote/estimate is very natural.

Because el presupuesto is a thing, not a person.

The personal a is mainly used before specific people (and sometimes pets or personified animals) when they are direct objects.

Compare:

• Veo al proveedor. = I see the supplier.
• Veo el presupuesto. = I see the quote/estimate.

So envió el presupuesto is correct with no a.

Yes. In Spain, ha enviado is very common when the action is connected to the present, especially with time expressions like hoy, esta semana, or when the result matters now.

So both can work, but the nuance changes:

• envió = simple completed past action
• ha enviado = past action with present relevance, often felt as more current

Without more context, envió is perfectly correct.

This is the normal, neutral Spanish word order: subject + verb + object.

• El proveedor = subject
• envió = verb
• el presupuesto = direct object

Spanish does allow other orders for emphasis, but they sound more marked. For example, if you wanted to highlight the object, you might say something like El presupuesto lo envió el proveedor. The original sentence is the most straightforward version.

No. Proveedor is the masculine form. The feminine form is proveedora.

So you could have:

• el proveedor
• la proveedora

If you are referring to a company rather than a specific woman, Spanish often still uses el proveedor because the noun itself is grammatically masculine.

A simple learner-friendly pronunciation guide would be:

el pro-be-e-DOR en-bi-Ó el pre-su-PWES-to

A few useful points:

• proveedor has four syllables: pro-ve-e-dor
• In Spain, v and b are pronounced very similarly
• envió is stressed on the last syllable: -ó
• presupuesto is stressed on pues

So the main stresses are:

El proveeDOR envió el presupuESTO.