In my last blog, we looked at how bad habits creep into everyday speech and how even native speakers can fall into traps like "should of" or "less people". But it raises an important question: where do we draw the line between a genuine grammatical mistake and perfectly acceptable casual English?

Language is a living, breathing thing. It’s continuously evolving. And in many cases, what strict grammarians frown upon is often standard, accepted practice among educated native speakers in relaxed settings. If language didn't evolve this way, we'd all still be speaking like Shakespeare!

Take sentences like "Who are you going with?" instead of "With whom are you going?" Syntax sticklers have always insisted that ending a sentence with a preposition is a sin. Yet, today, putting "whom" at the beginning of that sentence in a local UK pub would make you sound a bit odd—even though it is grammatically correct.

Another example of something you’ll hear often in Britain or other native English-speaking countries is: "What did you go there for?" Now, the simpler and more direct way to ask this question would be "Why did you go there?" However, in a time where speaking perfect grammar is becoming increasingly less important, there’s little surprise that many people more accustomed to grammatically perfect English often choose to accommodate such speakers.

So, how can English learners tell the difference between an outright error and a legitimate linguistic evolution?

So, if something you read or hear from a native speaker passes these tests—such as prose dropping relative pronouns ("The book I bought" instead of "The book that I bought")—it’s good to go!

This is especially true if your objective is to sound as near to native as possible. But if it violates core structural logic—like "I seen" or "should of''—it should be avoided!

English learners, have you ever been corrected on something that turned out to be native slang or casual usage? Let me know in the comments!

Next time: We’ll look at international English and how regional differences often change the rules entirely.

right as rain – an idiom that means perfectly fine

draw the line – set a strict limit on what we’re willing to do

living, breathing thing – something that is constantly changing and active

linguistic evolution – the natural process by which languages change over time
good to go – it’s fine to proceed with