Hi,<br/><br/>When i ask a simple question, i always confuse with "Is .." and "Does ...".<br/><br/>It is appreciated if anyone could tell when I should use "Is ..." and "Does ..."?<br/><br/>Example:<br/><br/>Is something work?<br/><br/>Does something work?<br/><br/>Does he speak to his teacher?<br/><br/>Is he speak to this teacher?<br/><br/>Thanks,<br/><br/>Hong