Show HN: English Grammar learning API: diagnostic multiple choice generation

Hi

This is an API with two endpoints.

One is about word changing paradigms and it detects and works with over hundred grammar patterns. It automatically finds grammar patterns in a free text and generates multiple choice tasks using relevant word paradigms. The other one detects Tenses (active and passive voices) and builds a multiple choice for each found Tense pattern. Each wrong variant has tags that may lead to an explanatory material that helps to correct the problem. This is the diagnostic multiple choice.

The link is to Mashape where you can try the API for free. You can use it in your English learning app to provide a flexible and individual way of learning grammar.