Breakdown of Doblo el ciervo siempre que tú dobles la rana.
tú
you (informal singular)
la
the (feminine)
doblar
to fold
siempre que
as long as / provided that
Questions & Answers about Doblo el ciervo siempre que tú dobles la rana.
Why is dobles in the subjunctive here?
The phrase siempre que meaning "provided that" or "as long as" sets up a condition for a future action, which triggers the subjunctive. Note that if siempre que is used to mean "whenever" for a habitual action (e.g., "Whenever you fold the frog, I fold the deer"), it takes the indicative.
The English translation says "I'll fold," but doblo is in the present tense. Why not use the future tense doblaré?
In Spanish, the present indicative is frequently used to express immediate or certain future actions, especially when making a deal or stating a firm intention. While doblaré is grammatically correct, doblo sounds more natural and conversational for a direct exchange like this.
Since the ending of dobles already tells us who is doing the action, why include the pronoun tú?
In this sentence, adding tú creates a strong contrast between the two actors: I fold the deer, provided you fold the frog. Spanish often uses subject pronouns for this kind of emphasis or contrast rather than for basic clarification.
Are there other common ways to say "provided that" instead of siempre que?
Yes! At this level, you will frequently hear con tal de que or siempre y cuando. Just like siempre que in this specific context, both of these phrases set up a condition and always require the subjunctive.