[Saltpeter]

Find lower reading level novels to read and use a dictionary to look up anything to come across you don't already know.

[alyndra]

Read a lot. Any words you don't know, you Google them. Do cross word puzzles and look up words you don't know.

[Revenge]

To improve your grammar in any language, it is all about just practising. Lots of the suggestions that have been posted here already such as reading a lot is beneficial. Posting around forums such as here is also a good way to improve. I recommend Grammarly app or extension: https://app.grammarly.com/. This will help you to start to notice your mistakes, but most importantly just keep practising at it. Good luck man!

[SocialAgency]

I pretty much learn basic English by playing videogames and talking to people trough skype.

I also speak russian now (csgo)

[CyberGuard]

I second Revenges' suggestion for Grammarly, it's an awesome plugin and even if you're profound at grammar, it's still a good choice to add it in.
Also tracks how many words are typed, how many mistakes are corrected as well as the number of unique words used.

Besides that, practice writing and reading articles / news is something that helps.

[Hasan12343]

Just by posting on Hack Forum will improve your English. But if you're talking in general, just read books, they will help you improve your English.

[Lante]

https://hackforums.net/showthread.php?tid=3061850
I wrote this thread in the past. It contains a list of common mistakes in English grammar and spelling, you see these mistakes everywhere and this list gives a clear distinction between words and the context they are used in wrongly and correctly.

[findingnature]

I would honestly just pick up a book and start reading. When you don't understand what is being said, look up the definition or use context clues. Good luck OP!

[REKN0WN]

When you read a lot of hard English story's you would come up on words you don't know this is when you look that word up

[Korvo]

I would recommend reading books, as it will help you out a bit, also conversating with people in discords or other chat groups will help you out. Maybe also grab a dictionary so that way you can look up the term and how the word is used.

I mean to me, you seem to have a pretty good vocabulary. Check out everyone else's suggestions and follow them, it will help you out a lot! Best of luck bro.

[ailo]

I would recommend reading books, as it will help you out a bit, also conversating with people in discords or other chat groups will help you out. Maybe also grab a dictionary so that way you can look up the term and how the word is used.

I mean to me, you seem to have a pretty good vocabulary. Check out everyone else's suggestions and follow them, it will help you out a lot! Best of luck bro.

Thanks man, put i'd like to learn more words so that i can express myself in more details for instance.

[.iniFile]

English being my third language, I never had trouble writing it or saying it. Had trouble pronouncing some words like "English" properly. I suggest downloading the Chrome extension Grammarly. Perhaps that can help you with spelling errors online.

[kushkaripordhi]

Read, read, and read. Watch YouTube videos for free lessons. Also, continually use HF. I've seen testimonials in which a lot of non-native English speakers say they have improved from using HF and other American sites daily...

[hashbrowns]

YouTube would be your best bet. Or schooling.

[Roytoy]

Are you trying to improve your speaking or writing skills? no amount of forum browsing could help your punctuation and speaking skills.