Breakdown of Puedes usar mi material mientras lo repongas mañana.
mi
my
usar
to use / to wear
poder
to be able to / can
mañana
tomorrow
lo
it / him (direct object)
mientras
while / the more/less (in proportional comparisons) / as long as
el material
the material
reponer
to restock
Questions & Answers about Puedes usar mi material mientras lo repongas mañana.
Why does this sentence use the subjunctive (repongas) after mientras?
Normally, you might know mientras as 'while' used with the indicative (e.g., mientras como, 'while I eat'). But when mientras expresses a condition for the future—meaning 'as long as' or 'provided that'—it requires the subjunctive. Since restocking the material is a future condition that hasn't happened yet, we use repongas.
Wait, so mientras can mean both 'while' and 'as long as'?
Exactly! When followed by the indicative, it means two things are happening at the same time ('while'). When followed by the subjunctive, it sets a condition ('as long as' or 'provided that'). Here, 'as long as you restock it' is the condition for using the material.
What is the infinitive of repongas, and why does it have a 'g' in it?
The infinitive is reponer (to replace or restock). Just like its root verb poner (to put), it is irregular in the 'yo' form of the present indicative (yo repongo). To form the present subjunctive, you take that 'yo' form, drop the 'o', and add the opposite endings. That gives us reponga, repongas, etc.
What does the lo in lo repongas refer to?
It refers back to mi material. Since material is a masculine singular noun, we use the direct object pronoun lo to mean 'it'. And because repongas is a conjugated verb, the pronoun goes immediately before it.
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