Search:

And why thousands and millions doesn't take 's' ? In Russian we say
одна тысяча (тысяча is in singular), but
две тысячи (тысячи is in plural).

Or the answer is "it's just the way it is" :D

By the way I want to ask a related question:

Which is correct:

1) Two thousand dollar
2) Two thousands dollar
3) Two thousand dollars
4) Two thousands dollars

The same with million(s) ?

Would it be an error to say "Here are five (six, seven, eight) dollars" or do I have to use "is"?