Yes, mainly for bad (and non-understandable) English.
Can i go to jail for complaints that people make to the police because something that they think vs that it is?
Scenario 1: You're as pure as the driven snow but some malicious person decides to advise the police that you are doing something illegal.
Scenario 2: You're doing something illegal and somebody informs the police.
In either case, if it's serious enough they will investigate and if there is evidence that the allegation is true, you will be charged. Whether you end up in the hoosegow will depend on the seriousness of the offence, the decision of the jury, and the judge's sunny disposition.
Blurtit's recommendation: repent and sin no more.
They can arrest you and take you in for questioning which may mean an overnight stay in cells at the police station, you should be entitled to legal representation, if in 24 hours they have no evidence they have to release you. No evidence no case. There is no such thing as a friendly chat, say nothing and speak to your solicitor. If English isn't your first language ask for a translator, make sure you read all paperwork before signing. You may be able to counter claim for unnecessary stress caused if you can prove your side of things.
Not sure if this is the same in USA someone else will have to vouch for that, I'm in England.
You can go to jail or be arrested for any and no reason. It's all up to the police.
First, it depends on the complaint. Second, they would need proof. So if you didn't do it, I would look for an alibi.
They may investigate it while they keep you in custody. Too many factors to say what they will do or how far they will go. Every case is different. They do however, need some evidence .. Even if it's testimony.