>be me
>writer
>hoping to publish a short story
>not quite there yet

>apply for teaching job in my field (stem)
>'okay anon, do these tests'
>one of them is english grammar
>i can only do 50% of the test

help me recover from this humiliation

i'm looking for a good, comprehensive grammar and syntax guide. also if anyone has an overview of how and why the rules have evolved and changed over the years then that would also be great