This could be great for foreign language learners! Imagine integrating this into Anki: "Please negate this sentence", "Please turn this sentence into past tens

This could be great for foreign language learners! Imagine integrating this into Anki: "Please negate this sentence", "Please turn this sentence into past tense", "What's the direct object", and so on. Perhaps "this sentence" could refer to some interesting sentence from an article that you read in Pocket last week, for example!