Word for problem listening/speaking and not reading/writing english

Suppose I have problems

• listening and understanding English esp. of non-Indian accent
• speaking English fluently

How should I tell someone about it using very few words instead of typing a long sentence?

Consider "nonconversational English."

I'm not a certified teacher, but an American student, and could help with conversational and nonconversational English.

To tell someone you're nonconversational in English, you could say:

I'm not conversational in English, but I can read it and write it without any difficulty.