Prefiero el pequeño porque parece más cómodo.

In Spanish, the subject pronoun is often left out because the verb ending already shows who is doing the action.

• prefiero = I prefer
• The -o ending tells you it is I

So Prefiero el pequeño... is perfectly natural. You can say Yo prefiero... if you want extra emphasis, such as contrasting your opinion with someone else’s.

Because preferir is a stem-changing verb.

In the present tense, the e in the stem changes to ie in most forms:

• yo prefiero
• tú prefieres
• él/ella prefiere
• nosotros preferimos
• vosotros preferís
• ellos prefieren

So prefiero is the correct yo form.

Here, el pequeño means the small one.

Spanish often uses:

• definite article + adjective

to avoid repeating a noun that is already understood from context.

For example, if you are choosing between two chairs, bags, or sofas, you can say:

• Prefiero el pequeño = I prefer the small one

The noun is omitted because it is already clear.

Because pequeño is being used like a noun here, meaning the small one.

Without el, pequeño would normally just be an adjective meaning small.
With el, it becomes a short way of referring to a previously mentioned masculine singular thing.

Compare:

• el pequeño = the small one
• la pequeña = the small one for a feminine noun
• los pequeños = the small ones

Because it agrees with the noun that is understood but not said.

If the omitted noun is masculine singular, you use:

• el pequeño

If it were feminine singular, you would say:

• la pequeña

If it were plural:

• los pequeños
• las pequeñas

The same idea applies to cómodo, which also agrees with that implied noun.

Because porque is the word for because when giving a reason.

• porque = because
• por qué = why in a question
• el porqué = the reason
• por que = a less common combination used in certain structures

So in this sentence, porque is correct because it introduces the reason:

• Prefiero el pequeño porque parece más cómodo.

Parece is the él/ella/usted form of parecer in the present tense.

The subject is el pequeño, which is grammatically singular, so the verb must also be singular:

• el pequeño parece = the small one seems

If the subject were plural, you would use:

• los pequeños parecen

Because parece means seems or appears, while es means is.

• parece más cómodo = it looks/seems more comfortable
• es más cómodo = it is more comfortable

So parece suggests an impression or judgment, not a confirmed fact.

Más cómodo means more comfortable.

This is the normal Spanish way to make a comparative:

• más + adjective

So:

• más cómodo = more comfortable
• más grande = bigger / larger
• más barato = cheaper

Here, the speaker is comparing it with another option that is already understood from context.

Because the second part of the comparison is left unstated, since it is obvious from context.

In full, it might be something like:

• Prefiero el pequeño porque parece más cómodo que el grande.

But if everyone already knows what the two options are, Spanish can leave that part out:

• parece más cómodo = it seems more comfortable

So que is only needed when you actually say what it is being compared to.

Because it agrees with the same implied noun as el pequeño.

If the hidden noun is masculine singular, then the adjective must also be masculine singular:

• el pequeño ... más cómodo

If the noun were feminine, you would say:

• la pequeña porque parece más cómoda

Agreement is very important in Spanish: articles, adjectives, and sometimes past participles must match the noun in gender and number.

Yes. If you want, you can include the noun:

• Prefiero el sofá pequeño porque parece más cómodo.
• Prefiero el coche pequeño porque parece más cómodo.

But Spanish often avoids repeating nouns when the meaning is already clear. That is why el pequeño sounds very natural. It is similar to saying the small one in English.