Normally I wouldn't care too much. Sometimes some stories have really bad english, I understand the part where english isn't your first language, so what else would you do?

I personally if I didn't speak english first, I would've searched around and looked for a reliable co author. To just help with grammar, spelling and basic things like that. Sometimes there are a few spelling mistakes here and there but if there's so much errors, it just puts me off. If I really enjoy the idea of your story i will persevere and read it, if not then sorry.

This is just my opinion, and it's just been bothering me for a long time now.