Spanish Por vs Para Practice Generator

Estudié por dos horas and el proyecto es para el jueves use two different prepositions that both translate to "for" in English, and that overlap is why por and para trip up nearly every English speaker learning Spanish. Por marks duration, two hours spent studying. Para marks a deadline, Thursday, the day something is due. English collapses both into the same small word, so a learner has no built-in signal for which one a sentence needs. This generator drills the categories where the two prepositions split apart in ways English can't show.

Category to focus on is [FOCUS:select:reason or cause (por) against purpose or goal (para),duration (por) against deadline (para),exchange (por) against recipient (para),mixed set covering all three].

CEFR level is [CEFR_LEVEL:select:A1 (beginner),A2 (elementary),B1 (intermediate),B2 (upper intermediate),C1 (advanced)].

Practice format is [FORMAT:select:fill in por or para given a sentence with a blank,translate an English sentence and choose the correct preposition,explain in one sentence why por or para fits a given example].

Build [ITEM_COUNT:number:8-25] items.

For reason against purpose, lo hice por ti means I did it because of you, the reason behind the action, while lo hice para ti means I did it for you, something intended for you as the recipient. Por answers the question por qué, why. Para answers para qué, what for. Teach that question test alongside every item, since it's the rule that transfers to a sentence the learner has never seen, not just the two examples memorized here.

For duration against deadline, estudié por dos horas names a stretch of time spent on the action, while el proyecto es para el jueves names the day the action is due. Mixing these up in an email to a professor or manager reads as either vague about how much time was spent or confused about when something is owed.

For exchange, te doy veinte euros por tu viejo móvil trades one thing for another, money for a phone, and para has no place in that sentence at all since nothing there is a purpose or a goal. Include at least one exchange item in a mixed set so the learner sees a case where para is flatly wrong, not just less natural.

Require a one-sentence justification with every answer, naming which underlying question, por qué or para qué, the sentence answers, so the reasoning gets practiced and not just the preposition itself.