Have you caught people doing mistake in "Then" and Than" ?

No, I'm kind of a grammar nazzi. I don't like to correct people though. I know people hate to be corrected. But I often do see those kinds of mistakes especially in the comments sections of some funny sites or something. "This is better then peanut butter!" Lol I just laugh. In a light way though I don't laugh AT them. I know it's hard to figure out another language. I just laugh to myself sometimes when I imagine that it's some American kid making those grammatical or spelling mistakes. Something like this.. "He could of been a football player!". Lol I love that.

I don't often mistake the words just because I've done a lot of writing myself. I've taken a few writing classes in my time at college and I think that has assisted me greatly in not making mistakes like that. I do have to admit though that sometimes whenever I'm online typing and my brain and hands get moving too fast I'll do it as a typo. It's very rarely that it occurs for me though.

I have encountered a lot of people committing mistakes with regard to the proper usage of the words than and then. I cannot remember that I committed mistakes about these words. Anyway if you are using spell check tool, this mistake will be easily corrected.

I've been seeing grammar mistake here. I'm not an american. I don't speak nor write fluent english but the mistakes are too noticeable for me. I don't mind though. As long as i understand them it's alright. I also see others using 'should of' instead of 'should have'. Just to mention more.

Yeah, even myself got confused over these simple English words. And lots of other English words I used incorrectly such as this & these, is & are, in & on, etc. My grade school daughter sometimes corrected me if she happens to heard some of these mistakes.lol

I am from America and always end up making this mistake, it is hard not too.