English grammar - write flash fiction stories for children that illustrate various tenses in English

We are looking for writers that are well versed in English grammar theory and practice. We are looking to write a series of well researched short stories (Flash Fiction) that feature a specific tense in English. These short stories are written for educational purposes (6th-7h grade level). This is not a GHOSTWRITING position. Our scope is to also promote our writers with a BIO and picture of the author. DO NOT USE artificial intelligence tools to write and edit these stories. They need to be 100% human created and we have tools to detect such texts. They need to reflect personal experiences and accurate cultural events and histories of the places and events that are addressed. Through this contract we purchase the exclusive and permanent copyright and license to publish them and create educational derivates as we need them for our platform. The derivates and the texts will be translated in other languages as well, so authors have a chance to have access to a wider audience. These stories cannot be published anywhere else but our platform .The author will be able to use their profile page link we create for them on our platform to add to their resume. They can share these stories using the link directly from our website. The story must have 500 words. We can pay 20 dollars per text. You can choose ONE of the tenses listed below. Please answer the following questions: 1. Are you willing to work in milestones? One story, one milestone. 2. Are you willing to make changes if necessary? 3. How many words does a text need to have? 4. What type of license we work with? 5. Are you allowed to use artificial intelligence to write these stories? Thank you! Present Simple Present Continuous Present Perfect Simple Present Perfect Present Perfect Continuous Past Simple Past Continuous Past Perfect Perfect Continuous Past Perfect Continuous Future Simple Future Simple Future Continuous Future Perfect Simple Future Perfect Continuous Thank you!