<i>&gt; Sounds like something a monolingual would say&#x2F;snark</i><p>how do you think i knew they had poor grammar in both languages?<p>most people can&#x27;t even speak or write a single language well, of course a huge number of people of average intelligence&#x2F;aptitude who are forced to speak two languages are going to be terrible at both.<p>how many people can &#x27;dominate&#x27; their native tongue?  not many.