Breakdown of Lleno la botella con agua fría.
yo
I
con
with
el agua
the water
frío
cold
la botella
the bottle
llenar
to fill
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Questions & Answers about Lleno la botella con agua fría.
Why is the verb llenar conjugated as lleno?
We use the present indicative first-person singular for yo (I). The stem is llen- and the -o ending signals yo, so lleno literally means “I fill.”
Why don’t we say yo lleno la botella con agua fría?
Spanish usually drops the subject pronoun when the verb ending already makes it clear. The -o in lleno tells you the subject is yo, so yo is optional (and often omitted).
Why do we use the article la before botella?
Botella is a feminine, singular noun. The definite article la matches its gender and number, giving la botella (“the bottle”).
Why do we use con to introduce agua fría? Could we also use de?
To fill something, you can say llenar algo con algo, using con to express “with.” Yes, you can also use de: Lleno la botella de agua fría is equally correct. Both patterns mean “I fill the bottle with cold water.”
Why is there no article before agua fría?
When you refer to an unspecified quantity of a non-count noun (like water), Spanish normally omits the article. Con agua fría means “with (some) cold water” in a general sense.
Why is the adjective fría placed after agua, and why does it have an accent mark?
Descriptive adjectives typically follow the noun in Spanish, so it’s agua fría rather than fría agua. It has an accent on the í because the stress falls on that syllable and creates a hiatus with the following a, which Spanish orthography marks with an acute accent.
Why is the adjective feminine (fría) instead of masculine (frío)?
Adjectives must agree in gender (and number) with the nouns they modify. Since agua is feminine, the adjective takes the feminine form fría.
How would you replace la botella with a direct-object pronoun?
Use the feminine singular pronoun la, placed before the verb: La lleno con agua fría (“I fill it with cold water”).
How would you express the same idea in the passive or se construction?
You can say La botella se llena con agua fría, which shifts to a passive-like or impersonal structure: “The bottle is filled with cold water.”
Could you use the present progressive instead of the simple present here?
Yes. To emphasize that the action is happening right now, say Estoy llenando la botella con agua fría (“I am filling the bottle with cold water”).