Do we need great grammer skills to communicate with each others?

[Harmman420]

Hi there, I do have friends from everywhere in social media, and I do have friends from japan which they dont speak English ( and Arabic for sure ) , so do you find it a problem when you communicate with a friend that don't speak your language but do understand simple english?
Someone told me in a topic a posted here to talk my first language " arabic " but the problem in arabic that one word have multi meanings not smiliar to english which is easiest, if you already know there is letters in Arabic that hard to people who didn't learn arabic to say it.

So tell me if you communicate easily with people with bad grammatical skills or it's hard?