Adverb clause of time An adverb clause is a subordinate clause It must be attached to a main clause Adverb clauses of time are introduced by the subordinating conjunctions while, after, whenever, before, since, as, till, until etc While you were playing I was working Don’t use the cell phone while you are driving As I was walking down the street, I saw James driving a Porsche He went to work after he fed the cats He went abroad after he finished his studies After you have finished your work, you may go home Don’t talk while she is singing Do it before you forget Bring me some water before you go I have not been keeping well since I returned from Kerala Everyone rose to their feet when he walked into the room They were told to wait till the signal was given I will wait here until you arrive Whenever I go to London, I try to see Mathew Whenever I see him, I feel nervous As soon as he heard the news, he called me Just as he entered the room the clock struck No sooner did he see us than he disappeared An adverb clause can come before or after the main clause When it comes at the beginning it is usually separated with a comma Stay on top of your writing! Download our grammar guide from www.englishgrammar.org to stay up-to-date Powered by TCPDF (www.tcpdf.org)