Vimos un paquete sospechoso.

Vimos is the preterite form of ver (to see) for nosotros: we saw.

The full preterite of ver is:

• vi
• viste
• vio
• vimos
• visteis
• vieron

A few useful points:

• ver is irregular in some forms of the preterite, but vimos looks regular.
• veíamos would be the imperfect of ver: we used to see / we were seeing.
• miramos comes from mirar, which means to look at/watch, not simply to see.

So Vimos un paquete sospechoso means We saw a suspicious package, not We were seeing... or We looked at...

Spanish often leaves out the subject pronoun when it is clear from the verb ending.

• Vimos already tells you the subject is nosotros/nosotras (we).
• So Nosotros vimos un paquete sospechoso is possible, but usually unnecessary.

You would add nosotros only for emphasis, contrast, or clarity:

• Nosotros vimos un paquete sospechoso, pero ellos no.
  We saw a suspicious package, but they didn’t.

Because paquete is a masculine noun in Spanish, so it takes:

• un in the singular
• unos in the plural

So:

• un paquete
• dos paquetes
• unos paquetes

Even though -e nouns do not always clearly show gender, paquete is masculine, so the article and any adjective must match it.

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

Since paquete is:

• masculine
• singular

the adjective must also be:

• masculine singular → sospechoso

Compare:

• un paquete sospechoso
• una caja sospechosa
• unos paquetes sospechosos
• unas cajas sospechosas

In Spanish, adjectives often come after the noun, especially when they are simply describing it.

So:

• un paquete sospechoso = a suspicious package

This is the most natural order here.

You can sometimes put an adjective before the noun, but that often changes the tone or emphasis.
Un sospechoso paquete sounds unusual here and may feel literary, emphatic, or less natural in everyday speech.

Here sospechoso means suspicious in the sense of seeming dangerous, questionable, or not normal.

It can describe:

• a person: un hombre sospechoso
• an object: un paquete sospechoso
• behavior: una actitud sospechosa

So in this sentence, it means the package seemed suspicious, not necessarily that someone had already proved it was dangerous.

Normally, no. In Spanish, singular countable nouns usually need an article or some other determiner.

So the natural sentence is:

• Vimos un paquete sospechoso.

Without un, paquete sounds incomplete in standard Spanish.

Spanish uses articles more consistently than English in some cases, and with a singular countable noun like paquete, you generally need one unless another determiner is present:

• Vimos ese paquete sospechoso.
• Vimos mi paquete.

The preterite is used for a completed action:

• Vimos un paquete sospechoso. = We saw a suspicious package.

It presents the sighting as a finished event.

The imperfect would be:

• Veíamos un paquete sospechoso.

That would usually mean something more like:

• We were seeing a suspicious package
• We used to see a suspicious package

In most contexts, that sounds less natural unless you are describing background or an ongoing situation.

A simple approximate pronunciation for a native English speaker is:

BEE-mos oon pah-KEH-teh sos-peh-CHO-so

A few notes for Spain:

• v and b are pronounced very similarly in Spanish.
• paquete has the stress on que: pa-QUE-te
• sospechoso has the stress on cho: sos-pe-CHO-so
• The j sound is not in this sentence, so nothing especially harsh appears here.
• In connected speech, vimos un may flow together smoothly.

Yes, ver is the natural verb here.

Spanish often distinguishes between:

• ver = to see
• mirar = to look at

So:

• Vimos un paquete sospechoso = We saw a suspicious package
• Miramos un paquete sospechoso = We looked at a suspicious package

The second one suggests more intentional attention. The first one simply reports what was seen.

Not usually. Ver can sometimes mean watch in contexts like films or TV:

• Vimos una película. = We watched a film.

But with un paquete, the natural meaning is just saw, not watched.

So in this sentence, the normal interpretation is:

• We saw a suspicious package.

The plural would be:

Vimos unos paquetes sospechosos.

Everything changes to match the plural noun:

• un → unos
• paquete → paquetes
• sospechoso → sospechosos

So the agreement pattern stays consistent.

Yes, grammatically you can, but it is a different tense.

• Vimos un paquete sospechoso = We saw a suspicious package
  This is the preterite, a simple past event.

• Hemos visto un paquete sospechoso = We have seen a suspicious package
  This is the present perfect.

In Spain, the present perfect is often used for recent past events connected to the present, especially with time expressions like:

• hoy
• esta mañana
• esta semana

So in Spain, if the event happened recently and still feels current, hemos visto can sound very natural.