I fucking love your grammar lessons, Ami, because they're mistakes that native English speakers commit far more often than second language learners do.
Certainly, some cunning linguists have made the observation that even magnificently eloquent Angloid badasses like yours truly occasionally make these sorts of errors, especially when in haste, and I imagine they just scratch their heads and conclude that native English speakers are a bunch of fucking dumbasses.
Hahahahaha ... and if they did, Australian English might even get a notch up as the proper English :)
I don't think they even teach formal grammar in the US anymore. A lot of folks younger than me say they never learned parts of speech or did sentence diagramming in primary school.
You've done some coding, @Algol, so you have to know how important syntax is: garbage in, garbage out, right? Consistent rules are important for learning. Phuck the inconsistent rulers of the English language who have forbidden silly things like ending sentences with prepositions or starting sentences with conjunctions. We do it when we're speaking. We ought to be able to do it when we're writing.
Sometimes when you use CORRECT languages, people can't get what you mean, even think you wrong cuz they have got used to the wrong ones.
(continued) ... Star, "Sometimes when you use CORRECT languages, people can't get what you mean, even think you wrong cuz they have got used to the wrong ones" ...
I still remember from a few years ago, being challenged for using what might have been a "double negative", the challenger actually said something like "you are wrong, because the teacher (or professor) did not teach us" ... yeah Star, do stay away from those idiots ...