Comparamos dos estilos.

Comparamos is the 1st person plural form of the verb comparar (to compare).

It tells you that the subject is we:

• comparo = I compare
• comparas = you compare
• comparamos = we compare

So the sentence is built around we compare / we compared two styles, depending on context.

Because Spanish often leaves out subject pronouns when they are not needed.

The verb ending -amos already tells you the subject is we, so nosotros is optional:

• Comparamos dos estilos.
• Nosotros comparamos dos estilos.

Both are correct. Adding nosotros usually gives extra emphasis or contrast.

It can mean either one, depending on context.

For -ar verbs, the present tense and the preterite are identical in the nosotros form:

• Present: comparamos = we compare
• Preterite: comparamos = we compared

So you need context to know which meaning is intended.

Examples:

• En este artículo, comparamos dos estilos. = In this article, we compare two styles.
• Ayer comparamos dos estilos. = Yesterday we compared two styles.

Because dos means two, so the noun must be plural.

• estilo = style
• estilos = styles

This is the same basic idea as in English: two style would be wrong, but two styles is correct.

Spanish often uses a noun without an article after a number.

So:

• dos estilos = two styles

That is the normal form.

If you say los dos estilos, it means the two styles, referring to two specific styles already known in the conversation.

Compare:

• Comparamos dos estilos. = We compare two styles.
• Comparamos los dos estilos. = We compare the two styles.

This is a very normal Spanish word order:

• verb + object

Spanish allows flexible word order, but this version sounds natural and straightforward.

You could also say:

• Nosotros comparamos dos estilos.

That is also correct, but the subject pronoun is usually omitted unless you want emphasis.

Because dos estilos is a direct object referring to things, not people.

Spanish uses the personal a mainly with specific human beings (and sometimes pets or personified beings).

So:

• Comparamos dos estilos. = no a
• Vemos a María. = uses a, because María is a person

Estilo is masculine.

So you would say:

• el estilo
• los estilos
• un estilo
• dos estilos

This matters when you use articles and adjectives:

• un estilo moderno
• los estilos clásicos

A simple pronunciation guide is:

kohm-pah-RAH-mohs dohs es-TEE-lohs

A few notes:

• comparamos is stressed on ra
• estilos is stressed on ti
• The e at the start of estilos is fully pronounced, unlike English words beginning with st-

More roughly in IPA:

• comparamos = /kompaˈɾamos/
• dos estilos = /dos esˈtilos/

Yes, depending on the meaning you want.

Common related verbs:

• comparar = to compare
• contrastar = to contrast
• analizar = to analyse
• examinar = to examine

But if the intended meaning is specifically to compare, then comparar is the best choice:

• Comparamos dos estilos. = We compare two styles.