La maleta pesa mucho.

Because maleta is a feminine noun in Spanish, so it takes the feminine article la.

• la maleta = the suitcase
• el libro = the book (masculine)

The ending -a often suggests a noun is feminine, and maleta follows that common pattern.

Pesa is the third-person singular present tense of the verb pesar.

Conjugation of pesar in the present:

• yo peso = I weigh
• tú pesas = you weigh
• él / ella / usted pesa = he / she / you weigh(s)

So in La maleta pesa mucho, pesa agrees with la maleta, which is singular.

Here, pesar means to weigh.

So La maleta pesa mucho literally means The suitcase weighs a lot.

In natural English, this often becomes The suitcase is very heavy, but Spanish is using the verb to weigh, not the adjective heavy.

Spanish often expresses this idea with pesar:

• La maleta pesa mucho = The suitcase weighs a lot

You can also say:

• La maleta es muy pesada = The suitcase is very heavy

Both are correct, but they are built differently:

• pesa mucho uses a verb
• es muy pesada uses ser + adjective

The sentence you were given is a very natural and common way to say it.

Because mucho modifies the verb pesa, while muy modifies adjectives or adverbs.

• pesa mucho = weighs a lot
• es muy pesada = is very heavy

So:

• mucho → used with verbs in cases like this
• muy → used with adjectives, such as pesada

That is why La maleta pesa muy would be wrong.

No. In this sentence, mucho is working as an adverb, not as an adjective, so it does not change form.

• La maleta pesa mucho = correct

But when mucho is an adjective, it does agree:

• mucha ropa = a lot of clothes
• muchas maletas = many suitcases

So here, because it means a lot and modifies the verb pesa, it stays mucho.

This is the normal Spanish order:

subject + verb + adverb

• La maleta = subject
• pesa = verb
• mucho = adverb

Spanish word order is often flexible, but this version is the most neutral and natural.

You might also hear different word orders for emphasis, but for a learner, La maleta pesa mucho is the standard pattern to remember.

Usually not in this sentence, unless the context changes.

• La maleta pesa mucho = The suitcase weighs a lot

If you just say Maleta pesa mucho, that sounds incomplete or unnatural in standard Spanish.

Spanish normally wants an article or another determiner before a singular countable noun:

• la maleta
• una maleta
• mi maleta
• esta maleta

Yes, but the meaning changes slightly.

• La maleta pesa mucho = The suitcase weighs a lot
• Una maleta pesa mucho = A suitcase weighs a lot / One suitcase weighs a lot

La points to a specific suitcase, while una introduces a non-specific one.

So both are grammatical, but they are used in different situations.

A rough pronunciation is:

lah mah-LEH-tah PEH-sah MOO-choh

A few useful pronunciation notes for Spain:

• maleta has the stress on le: ma-LE-ta
• pesa has the stress on pe: PE-sa
• mucho has the stress on mu: MU-cho

In most of Spain, the ch in mucho sounds like the ch in church.

It is mostly regular in its endings, but there is one thing to watch out for: pesar is an e → ie stem-changing verb in some forms.

Present tense:

• yo peso
• tú pesas
• él / ella pesa
• nosotros pesamos
• vosotros pesáis
• ellos pesan

In the sentence La maleta pesa mucho, you do not see the stem change, because él/ella/usted pesa keeps e.

So this specific form is straightforward, even though the verb has a stem change in other forms like yo peso.

Yes, but the meaning depends on context.

For objects:

• La maleta pesa mucho = The suitcase weighs a lot / is very heavy

For people, Spanish more often gives a specific weight:

• Juan pesa 80 kilos = Juan weighs 80 kilos

You can say Juan pesa mucho, but it may sound less natural unless the context clearly supports it. With objects like suitcases, boxes, and bags, pesa mucho is very common.

You can reuse the same structure with other nouns:

• La caja pesa mucho. = The box weighs a lot.
• La mochila pesa mucho. = The backpack weighs a lot.
• Esta bolsa pesa mucho. = This bag weighs a lot.
• Tu maleta pesa mucho. = Your suitcase weighs a lot.

Useful pattern:

[noun] + pesa + mucho

This is a very practical sentence frame for everyday Spanish.