Practice, practice, practice. There's really no shortcut.
This. I will also say if you can use commas appropriately you are better than most native English speakers, as a point of motivation. I've also had professors with quite broken English, that are very successful in their fields.
Depends on the field really. Maths? Yeah you don't need to be forming extraordinary sentences. Psychology? A bit harder.
One thing I notice from your short post:>when listing 2 things, using 'and' to join them you don't need a comma "my grammar and punctuation is terrible" is fine>however if you list three things you could say "apples, pears, and bananas" and use a comma, but this is preference https://en.wikipedia.org/wiki/Serial_comma (also called Oxford comma)
Here's how I would write your first section:>I am an ESLer, how do I improve my English writing? My grammar, punctuation, and written vocabulary is terrible.
I read this on the oxford dictionary blog or something years ago. The experiment was something like: they got a group of people to write an essay, and got an english teacher to grade it afterwards. In the weeks leading up to it, some were told to spend an hour a day writing practice essays. Another group just read example essays for an hour per day. Another group wrote for 30 min, and read for 30 min. The best results were actually from the people who just read and didn't write. So maybe just read a bunch of technical journal aritcles every day? I can't find the blog post though so maybe I'm misremembering
It was a blog post reporting on a study
Read The Elements of Style
Are you studying specifically for some test, or just want to improve?
Also look up Comprehensible Input theory.
how do you improve you're grammar?
Start reading "The Economist". You'll get the sense of how porkies think, and it'll improve your English as well.
I recommend reading the great English prose stylists. Google if you don't know them. Also read stuff like from here https://www.aldaily.com/
Pay close attention to how they all write. Good luck.
I am looking to improve my writing ability to a level where It would be easy for me to write papers for academic journals, and conferences.
The hardest part will be doing the research in the first place. Try to work on a project with a native speaker who has already published, doing most of the writing yourself and letting them proofread your work. Several people I know have improved their english this way; it is hard, but the fine things are hard.
>>1561>I am looking to improve my writing ability to a level where It would be easy for me to write papers for academic journals
Read academic journals in and out of your discipline. The key to being a good writer is reading reading reading.
Read, read, read, read
Practice, practice, practice, practice
Why learn Latin? Could I learn Greek instead?
Because Latin makes up like 80% of a our vocabulary whereas Greek only 6%? And those 6% came to us through Latin.
Might sound obvious but read more books? Including fiction (ones that are considered to be well written that is)