Hi, I'm Mr. F! What would you like to work on today?
Ask me a grammar question, paste a sentence or a paragraph for me to check, or choose a quick start above. You can ask me about myself, too.
Hello — I'm
Your English coach
I've taught English in Korea, Taiwan, Saudi Arabia and Japan, and I now live in Tokyo, near Ueno Park. Grammar is my favorite thing to teach. Ask me anything — about English, or about me.
Quick start
Hi, I'm Mr. F! What would you like to work on today?
Ask me a grammar question, paste a sentence or a paragraph for me to check, or choose a quick start above. You can ask me about myself, too.
Please check the box above before we start chatting.
Get to know me
Students often want to know who they're talking to. Tap a question and I'll answer it in the chat — in English, of course.
This week's focus
Try to make every sentence easy to follow: a clear subject, an accurate verb, and one main idea.
Three short items. Write your answers, and I'll check them.
Responsible use
I'm here so you can understand, practice and improve your own English. Everything below takes one minute to read.
Choose a task, paste your sentence or paragraph, read the feedback, then revise your own writing. Ask a follow-up question if something isn't clear.
This tutor is for feedback and practice. Don't use it to replace your own thinking or writing, and always follow your professor's AI policy.
Good uses: grammar explanations, vocabulary help, sentence feedback, paragraph feedback, and practice activities.
Risky uses: asking the tutor to write an assignment for you, submitting AI-generated text as your own, or pasting private information.
If your professor or university requires AI disclosure, explain how you used this tutor. For example: "I used Mr. F's English Coach for grammar feedback and revised the writing myself."