Student or Learner
I was looking at this
How many words does a native English speaker know? - Yahoo! Answers
"Thank you. Don't worry didn't believe a native English speaker knows only 2000 words.I knew they hold a bigger vocabulary but I wasn't sure how big is it. Usefull information anyway."
Here is my question
Can I say "I wasn't sure how big it is" or is the sentence above true?
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.