FluentAI remembers your level and weak topics. This lesson focuses on the Spanish past tense.

OpenAI builds a lesson around yesterday, with useful vocabulary, examples, and six practice questions.

Here, I answer the quiz and deliberately write mañana where the question asks for yesterday.

The app explains the mistake, awards fifty-five experience points, and adds the weak areas to the review queue.

The text tutor picks up the same goal, asking what I did yesterday to reinforce the lesson.

I reply with another deliberate error: using the present tense, voy, after ayer.

The tutor corrects voy to fui, preserves the meaning, and asks what I bought. It saves that correction for review.

The memory inspector shows the saved learner state, including the correction and review queue.

Reloading keeps the experience points and scheduled reviews, ready for the next session.