Reply																		
							Wed 20 Jul, 2016 05:29 am
						
						
					
					
					
						A student asked me to explain when and why they should use" it's and does' nt " .. he's confused about writing 'does it your pen' or 'is it your pen' .. I have explained which one is correct. .. but im struggling to answer why.. 
All replies much appreciated
					
				 
				
						
														
					
													@paulinkorat,
												Use does to form a question using a verb, use is for other questions e.g. those using nouns adverbs or adjectives. Does he like beer? Is he married?
											
 
					
				 
																
						
														
					
												Use 'is' for questions involving verbs in gerund form (ending -ing). Is he going out?