Comparamos la vía aérea con la vía ósea.

Comparamos is the 1st person plural form of the verb comparar in the present indicative.

So it means we compare.

• yo comparo = I compare
• tú comparas = you compare
• él/ella compara = he/she compares
• nosotros/nosotras comparamos = we compare

In this sentence, the subject we is understood from the verb ending, so Spanish does not need to say nosotros.

Spanish often omits subject pronouns because the verb ending already shows who is doing the action.

So:

• Comparamos la vía aérea con la vía ósea.
• Nosotros comparamos la vía aérea con la vía ósea.

Both are correct, but the first is more natural unless you want to add emphasis or contrast, such as we compare it, not they.

The verb comparar is commonly used with con when you are comparing one thing with another:

• comparar X con Y = to compare X with Y

So:

• Comparamos la vía aérea con la vía ósea.
  = We compare the airway with the bone route / bone pathway.

In everyday Spanish, you may also hear structures without con, depending on style and context, but comparar ... con ... is extremely standard and safe to use.

Each noun phrase has its own article:

• la vía aérea
• la vía ósea

In Spanish, it is very normal to repeat the article with each noun, especially when each one is a separate item being compared.

This is more natural than trying to use one article for both.

Yes, vía is a feminine noun, so it takes:

• la vía
• una vía

Because it is feminine, the adjectives also have to be feminine:

• aérea
• ósea

So we get:

• la vía aérea
• la vía ósea

Spanish adjectives must agree with the noun they describe in gender and number.

Since vía is feminine singular, the adjectives must also be feminine singular:

• vía aérea
• vía ósea

If the noun were masculine, the forms would usually be different:

• tejido óseo = bone tissue
• transporte aéreo = air transport

They are adjectives.

• aérea comes from aéreo/a = aerial, air-related
• ósea comes from óseo/a = bony, bone-related

So:

• vía aérea = airway / air passage
• vía ósea = bone pathway / intraosseous route, depending on context

These are not random noun combinations; they are noun + adjective structures.

They have written accents because Spanish spelling marks the stressed syllable in these words.

Also, vía, aérea, and ósea contain vowel sequences that are pronounced in separate syllables rather than being fully merged.

A rough syllable breakdown is:

• ví-a
• a-é-re-a
• ó-se-a

The accent marks help show the correct stress and pronunciation.

A helpful approximate pronunciation is:

• vía ≈ BEE-ah
• aérea ≈ ah-EH-reh-ah
• ósea ≈ OH-seh-ah

So the full sentence sounds roughly like:

• kom-pah-RAH-mos la BEE-ah ah-EH-reh-ah kon la OH-seh-ah

A few useful points for Spain Spanish:

• v and b sound very similar
• h is silent, but there is no h here anyway
• the r in aérea is a light Spanish r

By itself, comparamos can mean either:

• we compare (present)
• we compared (simple past / preterite)

This happens because some -ar verbs have the same form for present and preterite in nosotros.

So context tells you which meaning is intended.

Without more context, learners will often first read it as we compare. But in a real text, surrounding sentences would make the time clear.

Yes. That would mean we are comparing the airway with the bone pathway and it puts more emphasis on the action being in progress right now.

Compare:

• Comparamos ... = we compare / we are comparing / we compared, depending on context
• Estamos comparando ... = we are comparing

Spanish often uses the simple present where English might prefer a continuous form, so comparamos is very normal.

Because each item is singular:

• one vía aérea
• one vía ósea

The sentence compares one route/pathway with another route/pathway, so each noun phrase stays singular.

You would only use the plural if you were talking about multiple airways or multiple bone pathways, for example:

• Comparamos las vías aéreas con las vías óseas.

Yes. Vía is quite flexible and often means route, pathway, or means/method, especially in technical or medical language.

Depending on context, it can refer to:

• a physical route
• a medical access route
• a channel or pathway
• even a method or way of doing something

So in medical Spanish, vía aérea and vía ósea are very natural technical expressions.